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a24a01e0c1
A set of function attributes is required in any function that uses constrained floating point intrinsics. None of our tests use these attributes. This patch fixes this. These tests have been tested against the IR verifier changes in D68233. Reviewed by: andrew.w.kaylor, cameron.mcinally, uweigand Approved by: andrew.w.kaylor Differential Revision: https://reviews.llvm.org/D67925 llvm-svn: 373761
98 lines
3.8 KiB
LLVM
98 lines
3.8 KiB
LLVM
; Test strict floating-point truncations.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 \
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; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-SCALAR %s
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 \
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; RUN: | FileCheck -check-prefix=CHECK -check-prefix=CHECK-VECTOR %s
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declare float @llvm.experimental.constrained.fptrunc.f32.f64(double, metadata, metadata)
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declare float @llvm.experimental.constrained.fptrunc.f32.f128(fp128, metadata, metadata)
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declare double @llvm.experimental.constrained.fptrunc.f64.f128(fp128, metadata, metadata)
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declare float @llvm.experimental.constrained.fadd.f32(float, float, metadata, metadata)
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declare double @llvm.experimental.constrained.fadd.f64(double, double, metadata, metadata)
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; Test f64->f32.
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define float @f1(double %d1, double %d2) #0 {
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; CHECK-LABEL: f1:
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; CHECK-SCALAR: ledbr %f0, %f2
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; CHECK-VECTOR: ledbra %f0, 0, %f2, 0
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; CHECK: br %r14
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%res = call float @llvm.experimental.constrained.fptrunc.f32.f64(
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double %d2,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret float %res
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}
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; Test f128->f32.
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define float @f2(fp128 *%ptr) #0 {
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; CHECK-LABEL: f2:
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; CHECK: lexbr %f0, %f0
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; CHECK: br %r14
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%val = load fp128, fp128 *%ptr
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%res = call float @llvm.experimental.constrained.fptrunc.f32.f128(
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fp128 %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret float %res
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}
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; Make sure that we don't use %f0 as the destination of LEXBR when %f2
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; is still live.
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define void @f3(float *%dst, fp128 *%ptr, float %d1, float %d2) #0 {
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; CHECK-LABEL: f3:
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; CHECK: lexbr %f1, %f1
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; CHECK: aebr %f1, %f2
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; CHECK: ste %f1, 0(%r2)
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; CHECK: br %r14
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%val = load fp128, fp128 *%ptr
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%conv = call float @llvm.experimental.constrained.fptrunc.f32.f128(
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fp128 %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%res = call float @llvm.experimental.constrained.fadd.f32(
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float %conv, float %d2,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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store float %res, float *%dst
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ret void
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}
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; Test f128->f64.
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define double @f4(fp128 *%ptr) #0 {
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; CHECK-LABEL: f4:
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; CHECK: ldxbr %f0, %f0
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; CHECK: br %r14
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%val = load fp128, fp128 *%ptr
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%res = call double @llvm.experimental.constrained.fptrunc.f64.f128(
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fp128 %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret double %res
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}
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; Like f3, but for f128->f64.
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define void @f5(double *%dst, fp128 *%ptr, double %d1, double %d2) #0 {
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; CHECK-LABEL: f5:
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; CHECK: ldxbr %f1, %f1
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; CHECK-SCALAR: adbr %f1, %f2
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; CHECK-SCALAR: std %f1, 0(%r2)
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; CHECK-VECTOR: wfadb [[REG:%f[0-9]+]], %f1, %f2
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; CHECK-VECTOR: std [[REG]], 0(%r2)
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; CHECK: br %r14
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%val = load fp128, fp128 *%ptr
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%conv = call double @llvm.experimental.constrained.fptrunc.f64.f128(
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fp128 %val,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%res = call double @llvm.experimental.constrained.fadd.f64(
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double %conv, double %d2,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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store double %res, double *%dst
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ret void
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}
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attributes #0 = { strictfp }
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