724 lines
20 KiB
LLVM
724 lines
20 KiB
LLVM
; RUN: llc < %s -debugify-and-strip-all-safe -mcpu=cyclone -verify-machineinstrs -aarch64-enable-ccmp -aarch64-stress-ccmp | FileCheck %s
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target triple = "arm64-apple-ios"
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; CHECK: single_same
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; CHECK: cmp w0, #5
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; CHECK-NEXT: ccmp w1, #17, #4, ne
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; CHECK-NEXT: b.ne
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; CHECK: %if.then
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; CHECK: bl _foo
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; CHECK: %if.end
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define i32 @single_same(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 5
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%cmp1 = icmp eq i32 %b, 17
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Different condition codes for the two compares.
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; CHECK: single_different
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; CHECK: cmp w0, #6
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; CHECK-NEXT: ccmp w1, #17, #0, ge
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; CHECK-NEXT: b.eq
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; CHECK: %if.then
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; CHECK: bl _foo
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; CHECK: %if.end
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define i32 @single_different(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp sle i32 %a, 5
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%cmp1 = icmp ne i32 %b, 17
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Second block clobbers the flags, can't convert (easily).
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; CHECK: single_flagclobber
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; CHECK: cmp
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; CHECK: b.eq
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; CHECK: cmp
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; CHECK: b.gt
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define i32 @single_flagclobber(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 5
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br i1 %cmp, label %if.then, label %lor.lhs.false
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lor.lhs.false: ; preds = %entry
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%cmp1 = icmp slt i32 %b, 7
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%mul = shl nsw i32 %b, 1
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%add = add nsw i32 %b, 1
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%cond = select i1 %cmp1, i32 %mul, i32 %add
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%cmp2 = icmp slt i32 %cond, 17
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br i1 %cmp2, label %if.then, label %if.end
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if.then: ; preds = %lor.lhs.false, %entry
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end: ; preds = %if.then, %lor.lhs.false
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ret i32 7
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}
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; Second block clobbers the flags and ends with a tbz terminator.
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; CHECK: single_flagclobber_tbz
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; CHECK: cmp
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; CHECK: b.eq
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; CHECK: cmp
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; CHECK: tbz
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define i32 @single_flagclobber_tbz(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 5
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br i1 %cmp, label %if.then, label %lor.lhs.false
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lor.lhs.false: ; preds = %entry
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%cmp1 = icmp slt i32 %b, 7
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%mul = shl nsw i32 %b, 1
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%add = add nsw i32 %b, 1
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%cond = select i1 %cmp1, i32 %mul, i32 %add
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%and = and i32 %cond, 8
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%cmp2 = icmp ne i32 %and, 0
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br i1 %cmp2, label %if.then, label %if.end
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if.then: ; preds = %lor.lhs.false, %entry
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end: ; preds = %if.then, %lor.lhs.false
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ret i32 7
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}
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; Speculatively execute division by zero.
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; The sdiv/udiv instructions do not trap when the divisor is zero, so they are
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; safe to speculate.
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; CHECK-LABEL: speculate_division:
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; CHECK: cmp w0, #1
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; CHECK: sdiv [[DIVRES:w[0-9]+]], w1, w0
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; CHECK: ccmp [[DIVRES]], #16, #0, ge
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; CHECK: b.le [[BLOCK:LBB[0-9_]+]]
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; CHECK: [[BLOCK]]:
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; CHECK: bl _foo
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; CHECK: mov w0, #7
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define i32 @speculate_division(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp sgt i32 %a, 0
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br i1 %cmp, label %land.lhs.true, label %if.end
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land.lhs.true:
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%div = sdiv i32 %b, %a
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%cmp1 = icmp slt i32 %div, 17
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br i1 %cmp1, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Floating point compare.
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; CHECK: single_fcmp
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; CHECK: ; %bb.
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; CHECK: cmp
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; CHECK-NOT: b.
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; CHECK: fccmp {{.*}}, #8, ge
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; CHECK: b.ge
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define i32 @single_fcmp(i32 %a, float %b) nounwind ssp {
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entry:
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%cmp = icmp sgt i32 %a, 0
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br i1 %cmp, label %land.lhs.true, label %if.end
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land.lhs.true:
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%conv = sitofp i32 %a to float
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%div = fdiv float %b, %conv
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%cmp1 = fcmp oge float %div, 1.700000e+01
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br i1 %cmp1, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Chain multiple compares.
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; CHECK: multi_different
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; CHECK: cmp
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; CHECK: ccmp
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; CHECK: ccmp
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; CHECK: b.
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define void @multi_different(i32 %a, i32 %b, i32 %c) nounwind ssp {
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entry:
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%cmp = icmp sgt i32 %a, %b
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br i1 %cmp, label %land.lhs.true, label %if.end
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land.lhs.true:
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%div = sdiv i32 %b, %a
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%cmp1 = icmp eq i32 %div, 5
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%cmp4 = icmp sgt i32 %div, %c
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%or.cond = and i1 %cmp1, %cmp4
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret void
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}
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; Convert a cbz in the head block.
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; CHECK: cbz_head
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; CHECK: cmp w0, #0
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; CHECK: ccmp
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define i32 @cbz_head(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 0
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%cmp1 = icmp ne i32 %b, 17
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Check that the immediate operand is in range. The ccmp instruction encodes a
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; smaller range of immediates than subs/adds.
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; The ccmp immediates must be in the range 0-31.
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; CHECK: immediate_range
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; CHECK-NOT: ccmp
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define i32 @immediate_range(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 5
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%cmp1 = icmp eq i32 %b, 32
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Convert a cbz in the second block.
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; CHECK: cbz_second
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; CHECK: cmp w0, #0
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; CHECK: ccmp w1, #0, #0, ne
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; CHECK: b.eq
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define i32 @cbz_second(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 0
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%cmp1 = icmp ne i32 %b, 0
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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; Convert a cbnz in the second block.
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; CHECK: cbnz_second
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; CHECK: cmp w0, #0
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; CHECK: ccmp w1, #0, #4, ne
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; CHECK: b.ne
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define i32 @cbnz_second(i32 %a, i32 %b) nounwind ssp {
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entry:
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%cmp = icmp eq i32 %a, 0
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%cmp1 = icmp eq i32 %b, 0
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%or.cond = or i1 %cmp, %cmp1
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br i1 %or.cond, label %if.then, label %if.end
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if.then:
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%call = tail call i32 @foo() nounwind
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br label %if.end
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if.end:
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ret i32 7
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}
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declare i32 @foo()
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%str1 = type { %str2 }
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%str2 = type { [24 x i8], i8*, i32, %str1*, i32, [4 x i8], %str1*, %str1*, %str1*, %str1*, %str1*, %str1*, %str1*, %str1*, %str1*, i8*, i8, i8*, %str1*, i8* }
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; Test case distilled from 126.gcc.
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; The phi in sw.bb.i.i gets multiple operands for the %entry predecessor.
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; CHECK: build_modify_expr
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define void @build_modify_expr() nounwind ssp {
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entry:
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switch i32 undef, label %sw.bb.i.i [
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i32 69, label %if.end85
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i32 70, label %if.end85
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i32 71, label %if.end85
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i32 72, label %if.end85
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i32 73, label %if.end85
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i32 105, label %if.end85
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i32 106, label %if.end85
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]
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if.end85:
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ret void
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sw.bb.i.i:
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%ref.tr.i.i = phi %str1* [ %0, %sw.bb.i.i ], [ undef, %entry ]
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%operands.i.i = getelementptr inbounds %str1, %str1* %ref.tr.i.i, i64 0, i32 0, i32 2
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%arrayidx.i.i = bitcast i32* %operands.i.i to %str1**
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%0 = load %str1*, %str1** %arrayidx.i.i, align 8
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%code1.i.i.phi.trans.insert = getelementptr inbounds %str1, %str1* %0, i64 0, i32 0, i32 0, i64 16
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br label %sw.bb.i.i
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}
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; CHECK-LABEL: select_and
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define i64 @select_and(i32 %w0, i32 %w1, i64 %x2, i64 %x3) {
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; CHECK: cmp w1, #5
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; CHECK-NEXT: ccmp w0, w1, #0, ne
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; CHECK-NEXT: csel x0, x2, x3, lt
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; CHECK-NEXT: ret
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%1 = icmp slt i32 %w0, %w1
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%2 = icmp ne i32 5, %w1
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%3 = and i1 %1, %2
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%sel = select i1 %3, i64 %x2, i64 %x3
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ret i64 %sel
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}
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; CHECK-LABEL: select_or
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define i64 @select_or(i32 %w0, i32 %w1, i64 %x2, i64 %x3) {
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; CHECK: cmp w1, #5
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; CHECK-NEXT: ccmp w0, w1, #8, eq
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; CHECK-NEXT: csel x0, x2, x3, lt
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; CHECK-NEXT: ret
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%1 = icmp slt i32 %w0, %w1
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%2 = icmp ne i32 5, %w1
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%3 = or i1 %1, %2
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%sel = select i1 %3, i64 %x2, i64 %x3
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ret i64 %sel
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}
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; CHECK-LABEL: gccbug
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define i64 @gccbug(i64 %x0, i64 %x1) {
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; CHECK: cmp x0, #2
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; CHECK-NEXT: ccmp x0, #4, #4, ne
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; CHECK-NEXT: ccmp x1, #0, #0, eq
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; CHECK-NEXT: mov w[[REGNUM:[0-9]+]], #1
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; CHECK-NEXT: cinc x0, x[[REGNUM]], eq
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; CHECK-NEXT: ret
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%cmp0 = icmp eq i64 %x1, 0
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%cmp1 = icmp eq i64 %x0, 2
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%cmp2 = icmp eq i64 %x0, 4
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%or = or i1 %cmp2, %cmp1
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%and = and i1 %or, %cmp0
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%sel = select i1 %and, i64 2, i64 1
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ret i64 %sel
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}
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; CHECK-LABEL: select_ororand
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define i32 @select_ororand(i32 %w0, i32 %w1, i32 %w2, i32 %w3) {
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; CHECK: cmp w3, #4
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; CHECK-NEXT: ccmp w2, #2, #0, gt
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; CHECK-NEXT: ccmp w1, #13, #2, ge
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; CHECK-NEXT: ccmp w0, #0, #4, ls
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; CHECK-NEXT: csel w0, w3, wzr, eq
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; CHECK-NEXT: ret
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%c0 = icmp eq i32 %w0, 0
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%c1 = icmp ugt i32 %w1, 13
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%c2 = icmp slt i32 %w2, 2
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%c4 = icmp sgt i32 %w3, 4
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%or = or i1 %c0, %c1
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%and = and i1 %c2, %c4
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%or1 = or i1 %or, %and
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%sel = select i1 %or1, i32 %w3, i32 0
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ret i32 %sel
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}
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; CHECK-LABEL: select_andor
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define i32 @select_andor(i32 %v1, i32 %v2, i32 %v3) {
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; CHECK: cmp w1, w2
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; CHECK-NEXT: ccmp w0, #0, #4, lt
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; CHECK-NEXT: ccmp w0, w1, #0, eq
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; CHECK-NEXT: csel w0, w0, w1, eq
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; CHECK-NEXT: ret
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%c0 = icmp eq i32 %v1, %v2
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%c1 = icmp sge i32 %v2, %v3
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%c2 = icmp eq i32 %v1, 0
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%or = or i1 %c2, %c1
|
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%and = and i1 %or, %c0
|
|
%sel = select i1 %and, i32 %v1, i32 %v2
|
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ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: select_noccmp1
|
|
define i64 @select_noccmp1(i64 %v1, i64 %v2, i64 %v3, i64 %r) {
|
|
; CHECK: cmp x0, #0
|
|
; CHECK-NEXT: cset [[REG0:w[0-9]+]], lt
|
|
; CHECK-NEXT: cmp x0, #13
|
|
; CHECK-NOT: ccmp
|
|
; CHECK-NEXT: cset [[REG1:w[0-9]+]], gt
|
|
; CHECK-NEXT: cmp x2, #2
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|
; CHECK-NEXT: cset [[REG2:w[0-9]+]], lt
|
|
; CHECK-NEXT: cmp x2, #4
|
|
; CHECK-NEXT: cset [[REG3:w[0-9]+]], gt
|
|
; CHECK-NEXT: and [[REG4:w[0-9]+]], [[REG0]], [[REG1]]
|
|
; CHECK-NEXT: and [[REG5:w[0-9]+]], [[REG2]], [[REG3]]
|
|
; CHECK-NEXT: orr [[REG6:w[0-9]+]], [[REG4]], [[REG5]]
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; CHECK-NEXT: cmp [[REG6]], #0
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; CHECK-NEXT: csel x0, xzr, x3, ne
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; CHECK-NEXT: ret
|
|
%c0 = icmp slt i64 %v1, 0
|
|
%c1 = icmp sgt i64 %v1, 13
|
|
%c2 = icmp slt i64 %v3, 2
|
|
%c4 = icmp sgt i64 %v3, 4
|
|
%and0 = and i1 %c0, %c1
|
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%and1 = and i1 %c2, %c4
|
|
%or = or i1 %and0, %and1
|
|
%sel = select i1 %or, i64 0, i64 %r
|
|
ret i64 %sel
|
|
}
|
|
|
|
@g = global i32 0
|
|
|
|
; Should not use ccmp if we have to compute the or expression in an integer
|
|
; register anyway because of other users.
|
|
; CHECK-LABEL: select_noccmp2
|
|
define i64 @select_noccmp2(i64 %v1, i64 %v2, i64 %v3, i64 %r) {
|
|
; CHECK: cmp x0, #0
|
|
; CHECK-NEXT: cset [[REG0:w[0-9]+]], lt
|
|
; CHECK-NOT: ccmp
|
|
; CHECK-NEXT: cmp x0, #13
|
|
; CHECK-NEXT: cset [[REG1:w[0-9]+]], gt
|
|
; CHECK-NEXT: orr [[REG2:w[0-9]+]], [[REG0]], [[REG1]]
|
|
; CHECK-NEXT: cmp [[REG2]], #0
|
|
; CHECK-NEXT: csel x0, xzr, x3, ne
|
|
; CHECK-NEXT: sbfx [[REG3:w[0-9]+]], [[REG2]], #0, #1
|
|
; CHECK-NEXT: adrp x[[REGN4:[0-9]+]], _g@PAGE
|
|
; CHECK-NEXT: str [[REG3]], [x[[REGN4]], _g@PAGEOFF]
|
|
; CHECK-NEXT: ret
|
|
%c0 = icmp slt i64 %v1, 0
|
|
%c1 = icmp sgt i64 %v1, 13
|
|
%or = or i1 %c0, %c1
|
|
%sel = select i1 %or, i64 0, i64 %r
|
|
%ext = sext i1 %or to i32
|
|
store volatile i32 %ext, i32* @g
|
|
ret i64 %sel
|
|
}
|
|
|
|
; The following is not possible to implement with a single cmp;ccmp;csel
|
|
; sequence.
|
|
; CHECK-LABEL: select_noccmp3
|
|
define i32 @select_noccmp3(i32 %v0, i32 %v1, i32 %v2) {
|
|
%c0 = icmp slt i32 %v0, 0
|
|
%c1 = icmp sgt i32 %v0, 13
|
|
%c2 = icmp slt i32 %v0, 22
|
|
%c3 = icmp sgt i32 %v0, 44
|
|
%c4 = icmp eq i32 %v0, 99
|
|
%c5 = icmp eq i32 %v0, 77
|
|
%or0 = or i1 %c0, %c1
|
|
%or1 = or i1 %c2, %c3
|
|
%and0 = and i1 %or0, %or1
|
|
%or2 = or i1 %c4, %c5
|
|
%and1 = and i1 %and0, %or2
|
|
%sel = select i1 %and1, i32 %v1, i32 %v2
|
|
ret i32 %sel
|
|
}
|
|
|
|
; Test the IR CCs that expand to two cond codes.
|
|
|
|
; CHECK-LABEL: select_and_olt_one:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-NEXT: fcmp d0, d1
|
|
; CHECK-NEXT: fccmp d2, d3, #4, mi
|
|
; CHECK-NEXT: fccmp d2, d3, #1, ne
|
|
; CHECK-NEXT: csel w0, w0, w1, vc
|
|
; CHECK-NEXT: ret
|
|
define i32 @select_and_olt_one(double %v0, double %v1, double %v2, double %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp olt double %v0, %v1
|
|
%c1 = fcmp one double %v2, %v3
|
|
%cr = and i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: select_and_one_olt:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-NEXT: fcmp d0, d1
|
|
; CHECK-NEXT: fccmp d0, d1, #1, ne
|
|
; CHECK-NEXT: fccmp d2, d3, #0, vc
|
|
; CHECK-NEXT: csel w0, w0, w1, mi
|
|
; CHECK-NEXT: ret
|
|
define i32 @select_and_one_olt(double %v0, double %v1, double %v2, double %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp one double %v0, %v1
|
|
%c1 = fcmp olt double %v2, %v3
|
|
%cr = and i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: select_and_olt_ueq:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-NEXT: fcmp d0, d1
|
|
; CHECK-NEXT: fccmp d2, d3, #0, mi
|
|
; CHECK-NEXT: fccmp d2, d3, #8, le
|
|
; CHECK-NEXT: csel w0, w0, w1, pl
|
|
; CHECK-NEXT: ret
|
|
define i32 @select_and_olt_ueq(double %v0, double %v1, double %v2, double %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp olt double %v0, %v1
|
|
%c1 = fcmp ueq double %v2, %v3
|
|
%cr = and i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: select_and_ueq_olt:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-NEXT: fcmp d0, d1
|
|
; CHECK-NEXT: fccmp d0, d1, #8, le
|
|
; CHECK-NEXT: fccmp d2, d3, #0, pl
|
|
; CHECK-NEXT: csel w0, w0, w1, mi
|
|
; CHECK-NEXT: ret
|
|
define i32 @select_and_ueq_olt(double %v0, double %v1, double %v2, double %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp ueq double %v0, %v1
|
|
%c1 = fcmp olt double %v2, %v3
|
|
%cr = and i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: select_or_olt_one:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-NEXT: fcmp d0, d1
|
|
; CHECK-NEXT: fccmp d2, d3, #0, pl
|
|
; CHECK-NEXT: fccmp d2, d3, #8, le
|
|
; CHECK-NEXT: csel w0, w0, w1, mi
|
|
; CHECK-NEXT: ret
|
|
define i32 @select_or_olt_one(double %v0, double %v1, double %v2, double %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp olt double %v0, %v1
|
|
%c1 = fcmp one double %v2, %v3
|
|
%cr = or i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: select_or_one_olt:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-NEXT: fcmp d0, d1
|
|
; CHECK-NEXT: fccmp d0, d1, #8, le
|
|
; CHECK-NEXT: fccmp d2, d3, #8, pl
|
|
; CHECK-NEXT: csel w0, w0, w1, mi
|
|
; CHECK-NEXT: ret
|
|
define i32 @select_or_one_olt(double %v0, double %v1, double %v2, double %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp one double %v0, %v1
|
|
%c1 = fcmp olt double %v2, %v3
|
|
%cr = or i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: select_or_olt_ueq:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-NEXT: fcmp d0, d1
|
|
; CHECK-NEXT: fccmp d2, d3, #4, pl
|
|
; CHECK-NEXT: fccmp d2, d3, #1, ne
|
|
; CHECK-NEXT: csel w0, w0, w1, vs
|
|
; CHECK-NEXT: ret
|
|
define i32 @select_or_olt_ueq(double %v0, double %v1, double %v2, double %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp olt double %v0, %v1
|
|
%c1 = fcmp ueq double %v2, %v3
|
|
%cr = or i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: select_or_ueq_olt:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-NEXT: fcmp d0, d1
|
|
; CHECK-NEXT: fccmp d0, d1, #1, ne
|
|
; CHECK-NEXT: fccmp d2, d3, #8, vc
|
|
; CHECK-NEXT: csel w0, w0, w1, mi
|
|
; CHECK-NEXT: ret
|
|
define i32 @select_or_ueq_olt(double %v0, double %v1, double %v2, double %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp ueq double %v0, %v1
|
|
%c1 = fcmp olt double %v2, %v3
|
|
%cr = or i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: select_or_olt_ogt_ueq:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-NEXT: fcmp d0, d1
|
|
; CHECK-NEXT: fccmp d2, d3, #0, pl
|
|
; CHECK-NEXT: fccmp d4, d5, #4, le
|
|
; CHECK-NEXT: fccmp d4, d5, #1, ne
|
|
; CHECK-NEXT: csel w0, w0, w1, vs
|
|
; CHECK-NEXT: ret
|
|
define i32 @select_or_olt_ogt_ueq(double %v0, double %v1, double %v2, double %v3, double %v4, double %v5, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp olt double %v0, %v1
|
|
%c1 = fcmp ogt double %v2, %v3
|
|
%c2 = fcmp ueq double %v4, %v5
|
|
%c3 = or i1 %c1, %c0
|
|
%cr = or i1 %c2, %c3
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: select_or_olt_ueq_ogt:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-NEXT: fcmp d0, d1
|
|
; CHECK-NEXT: fccmp d2, d3, #4, pl
|
|
; CHECK-NEXT: fccmp d2, d3, #1, ne
|
|
; CHECK-NEXT: fccmp d4, d5, #0, vc
|
|
; CHECK-NEXT: csel w0, w0, w1, gt
|
|
; CHECK-NEXT: ret
|
|
define i32 @select_or_olt_ueq_ogt(double %v0, double %v1, double %v2, double %v3, double %v4, double %v5, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp olt double %v0, %v1
|
|
%c1 = fcmp ueq double %v2, %v3
|
|
%c2 = fcmp ogt double %v4, %v5
|
|
%c3 = or i1 %c1, %c0
|
|
%cr = or i1 %c2, %c3
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; Verify that we correctly promote f16.
|
|
|
|
; CHECK-LABEL: half_select_and_olt_oge:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-DAG: fcvt [[S0:s[0-9]+]], h0
|
|
; CHECK-DAG: fcvt [[S1:s[0-9]+]], h1
|
|
; CHECK-NEXT: fcmp [[S0]], [[S1]]
|
|
; CHECK-DAG: fcvt [[S2:s[0-9]+]], h2
|
|
; CHECK-DAG: fcvt [[S3:s[0-9]+]], h3
|
|
; CHECK-NEXT: fccmp [[S2]], [[S3]], #8, mi
|
|
; CHECK-NEXT: csel w0, w0, w1, ge
|
|
; CHECK-NEXT: ret
|
|
define i32 @half_select_and_olt_oge(half %v0, half %v1, half %v2, half %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp olt half %v0, %v1
|
|
%c1 = fcmp oge half %v2, %v3
|
|
%cr = and i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; CHECK-LABEL: half_select_and_olt_one:
|
|
; CHECK-LABEL: ; %bb.0:
|
|
; CHECK-DAG: fcvt [[S0:s[0-9]+]], h0
|
|
; CHECK-DAG: fcvt [[S1:s[0-9]+]], h1
|
|
; CHECK-NEXT: fcmp [[S0]], [[S1]]
|
|
; CHECK-DAG: fcvt [[S2:s[0-9]+]], h2
|
|
; CHECK-DAG: fcvt [[S3:s[0-9]+]], h3
|
|
; CHECK-NEXT: fccmp [[S2]], [[S3]], #4, mi
|
|
; CHECK-NEXT: fccmp [[S2]], [[S3]], #1, ne
|
|
; CHECK-NEXT: csel w0, w0, w1, vc
|
|
; CHECK-NEXT: ret
|
|
define i32 @half_select_and_olt_one(half %v0, half %v1, half %v2, half %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp olt half %v0, %v1
|
|
%c1 = fcmp one half %v2, %v3
|
|
%cr = and i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; Also verify that we don't try to generate f128 FCCMPs, using RT calls instead.
|
|
|
|
; CHECK-LABEL: f128_select_and_olt_oge:
|
|
; CHECK: bl ___lttf2
|
|
; CHECK: bl ___getf2
|
|
define i32 @f128_select_and_olt_oge(fp128 %v0, fp128 %v1, fp128 %v2, fp128 %v3, i32 %a, i32 %b) #0 {
|
|
%c0 = fcmp olt fp128 %v0, %v1
|
|
%c1 = fcmp oge fp128 %v2, %v3
|
|
%cr = and i1 %c1, %c0
|
|
%sel = select i1 %cr, i32 %a, i32 %b
|
|
ret i32 %sel
|
|
}
|
|
|
|
; This testcase resembles the core problem of http://llvm.org/PR39550
|
|
; (an OR operation is 2 levels deep but needs to be implemented first)
|
|
; CHECK-LABEL: deep_or
|
|
; CHECK: cmp w2, #20
|
|
; CHECK-NEXT: ccmp w2, #15, #4, ne
|
|
; CHECK-NEXT: ccmp w1, #0, #4, eq
|
|
; CHECK-NEXT: ccmp w0, #0, #4, ne
|
|
; CHECK-NEXT: csel w0, w4, w5, ne
|
|
; CHECK-NEXT: ret
|
|
define i32 @deep_or(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %x, i32 %y) {
|
|
%c0 = icmp ne i32 %a0, 0
|
|
%c1 = icmp ne i32 %a1, 0
|
|
%c2 = icmp eq i32 %a2, 15
|
|
%c3 = icmp eq i32 %a2, 20
|
|
|
|
%or = or i1 %c2, %c3
|
|
%and0 = and i1 %or, %c1
|
|
%and1 = and i1 %and0, %c0
|
|
%sel = select i1 %and1, i32 %x, i32 %y
|
|
ret i32 %sel
|
|
}
|
|
|
|
; Variation of deep_or, we still need to implement the OR first though.
|
|
; CHECK-LABEL: deep_or1
|
|
; CHECK: cmp w2, #20
|
|
; CHECK-NEXT: ccmp w2, #15, #4, ne
|
|
; CHECK-NEXT: ccmp w0, #0, #4, eq
|
|
; CHECK-NEXT: ccmp w1, #0, #4, ne
|
|
; CHECK-NEXT: csel w0, w4, w5, ne
|
|
; CHECK-NEXT: ret
|
|
define i32 @deep_or1(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %x, i32 %y) {
|
|
%c0 = icmp ne i32 %a0, 0
|
|
%c1 = icmp ne i32 %a1, 0
|
|
%c2 = icmp eq i32 %a2, 15
|
|
%c3 = icmp eq i32 %a2, 20
|
|
|
|
%or = or i1 %c2, %c3
|
|
%and0 = and i1 %c0, %or
|
|
%and1 = and i1 %and0, %c1
|
|
%sel = select i1 %and1, i32 %x, i32 %y
|
|
ret i32 %sel
|
|
}
|
|
|
|
; Variation of deep_or, we still need to implement the OR first though.
|
|
; CHECK-LABEL: deep_or2
|
|
; CHECK: cmp w2, #20
|
|
; CHECK-NEXT: ccmp w2, #15, #4, ne
|
|
; CHECK-NEXT: ccmp w1, #0, #4, eq
|
|
; CHECK-NEXT: ccmp w0, #0, #4, ne
|
|
; CHECK-NEXT: csel w0, w4, w5, ne
|
|
; CHECK-NEXT: ret
|
|
define i32 @deep_or2(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %x, i32 %y) {
|
|
%c0 = icmp ne i32 %a0, 0
|
|
%c1 = icmp ne i32 %a1, 0
|
|
%c2 = icmp eq i32 %a2, 15
|
|
%c3 = icmp eq i32 %a2, 20
|
|
|
|
%or = or i1 %c2, %c3
|
|
%and0 = and i1 %c0, %c1
|
|
%and1 = and i1 %and0, %or
|
|
%sel = select i1 %and1, i32 %x, i32 %y
|
|
ret i32 %sel
|
|
}
|
|
|
|
attributes #0 = { nounwind }
|