91 lines
2.9 KiB
LLVM
91 lines
2.9 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; Test strict conversion of floating-point values to unsigned i64s (z10 only).
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
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; z10 doesn't have native support for unsigned fp-to-i64 conversions;
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; they were added in z196 as the Convert to Logical family of instructions.
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; Convert via signed i64s instead.
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; Note that the strict expansion sequence must be used.
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declare i64 @llvm.experimental.constrained.fptoui.i64.f32(float, metadata)
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declare i64 @llvm.experimental.constrained.fptoui.i64.f64(double, metadata)
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declare i64 @llvm.experimental.constrained.fptoui.i64.f128(fp128, metadata)
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; Test f32->i64.
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define i64 @f1(float %f) #0 {
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; CHECK-LABEL: f1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: larl %r1, .LCPI0_0
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; CHECK-NEXT: le %f1, 0(%r1)
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; CHECK-NEXT: kebr %f0, %f1
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; CHECK-NEXT: jnl .LBB0_2
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; CHECK-NEXT: # %bb.1:
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; CHECK-NEXT: lghi %r0, 0
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; CHECK-NEXT: lzer %f1
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; CHECK-NEXT: j .LBB0_3
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; CHECK-NEXT: .LBB0_2:
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; CHECK-NEXT: llihh %r0, 32768
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; CHECK-NEXT: .LBB0_3:
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; CHECK-NEXT: sebr %f0, %f1
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; CHECK-NEXT: cgebr %r2, 5, %f0
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; CHECK-NEXT: xgr %r2, %r0
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; CHECK-NEXT: br %r14
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%conv = call i64 @llvm.experimental.constrained.fptoui.i64.f32(float %f,
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metadata !"fpexcept.strict") #0
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ret i64 %conv
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}
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; Test f64->i64.
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define i64 @f2(double %f) #0 {
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; CHECK-LABEL: f2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: larl %r1, .LCPI1_0
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; CHECK-NEXT: ldeb %f1, 0(%r1)
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; CHECK-NEXT: kdbr %f0, %f1
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; CHECK-NEXT: jnl .LBB1_2
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; CHECK-NEXT: # %bb.1:
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; CHECK-NEXT: lghi %r0, 0
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; CHECK-NEXT: lzdr %f1
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; CHECK-NEXT: j .LBB1_3
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; CHECK-NEXT: .LBB1_2:
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; CHECK-NEXT: llihh %r0, 32768
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; CHECK-NEXT: .LBB1_3:
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; CHECK-NEXT: sdbr %f0, %f1
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; CHECK-NEXT: cgdbr %r2, 5, %f0
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; CHECK-NEXT: xgr %r2, %r0
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; CHECK-NEXT: br %r14
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%conv = call i64 @llvm.experimental.constrained.fptoui.i64.f64(double %f,
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metadata !"fpexcept.strict") #0
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ret i64 %conv
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}
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; Test f128->i64.
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define i64 @f3(fp128 *%src) #0 {
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; CHECK-LABEL: f3:
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; CHECK: # %bb.0:
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; CHECK-NEXT: ld %f0, 0(%r2)
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; CHECK-NEXT: ld %f2, 8(%r2)
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; CHECK-NEXT: larl %r1, .LCPI2_0
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; CHECK-NEXT: lxeb %f1, 0(%r1)
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; CHECK-NEXT: kxbr %f0, %f1
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; CHECK-NEXT: jnl .LBB2_2
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; CHECK-NEXT: # %bb.1:
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; CHECK-NEXT: lghi %r0, 0
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; CHECK-NEXT: lzxr %f1
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; CHECK-NEXT: j .LBB2_3
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; CHECK-NEXT: .LBB2_2:
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; CHECK-NEXT: llihh %r0, 32768
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; CHECK-NEXT: .LBB2_3:
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; CHECK-NEXT: sxbr %f0, %f1
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; CHECK-NEXT: cgxbr %r2, 5, %f0
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; CHECK-NEXT: xgr %r2, %r0
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; CHECK-NEXT: br %r14
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%f = load fp128, fp128 *%src
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%conv = call i64 @llvm.experimental.constrained.fptoui.i64.f128(fp128 %f,
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metadata !"fpexcept.strict") #0
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ret i64 %conv
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}
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attributes #0 = { strictfp }
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