47 lines
2.2 KiB
LLVM
47 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -indvars -S | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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; Make sure that we do not insert trunc in the loop.
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define i32 @test_01(double* %p, double %x, i32* %np, i32* %mp, i32 %k) {
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; CHECK-LABEL: @test_01(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = icmp sgt i32 [[K:%.*]], 1
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; CHECK-NEXT: [[SMAX:%.*]] = select i1 [[TMP0]], i32 [[K]], i32 1
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; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[SMAX]] to i64
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[IV_WIDE:%.*]] = phi i64 [ [[CANONICAL_IV_NEXT_I:%.*]], [[LOOP]] ], [ 0, [[ENTRY:%.*]] ]
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; CHECK-NEXT: [[CANONICAL_IV_NEXT_I]] = add nuw nsw i64 [[IV_WIDE]], 1
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds double, double* [[P:%.*]], i64 [[IV_WIDE]]
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; CHECK-NEXT: [[LOAD:%.*]] = load atomic double, double* [[GEP]] unordered, align 8
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; CHECK-NEXT: [[MUL:%.*]] = fmul double [[X:%.*]], [[LOAD]]
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; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds double, double* [[P]], i64 [[IV_WIDE]]
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; CHECK-NEXT: store atomic double [[MUL]], double* [[GEP2]] unordered, align 8
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[CANONICAL_IV_NEXT_I]], [[WIDE_TRIP_COUNT]]
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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br label %loop
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loop:
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%iv.wide = phi i64 [ %canonical.iv.next.i, %loop ], [ 0, %entry ]
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%iv.narrow = phi i32 [ %iv.narrow.next, %loop ], [ 0, %entry ]
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%canonical.iv.next.i = add nuw nsw i64 %iv.wide, 1
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%zext = zext i32 %iv.narrow to i64
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%gep = getelementptr inbounds double, double* %p, i64 %zext
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%load = load atomic double, double* %gep unordered, align 8
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%mul = fmul double %x, %load
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%gep2 = getelementptr inbounds double, double* %p, i64 %zext
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store atomic double %mul, double* %gep2 unordered, align 8
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%iv.narrow.next = add nuw nsw i32 %iv.narrow, 1
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%loop.cond = icmp slt i32 %iv.narrow.next, %k
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br i1 %loop.cond, label %loop, label %exit
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exit:
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ret i32 0
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}
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