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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
176 lines
6.7 KiB
LLVM
176 lines
6.7 KiB
LLVM
; Test 32-bit floating-point strict subtraction.
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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=z14 | FileCheck %s
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declare float @foo()
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declare float @llvm.experimental.constrained.fsub.f32(float, float, metadata, metadata)
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; Check register subtraction.
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define float @f1(float %f1, float %f2) #0 {
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; CHECK-LABEL: f1:
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; CHECK: sebr %f0, %f2
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; CHECK: br %r14
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%res = call float @llvm.experimental.constrained.fsub.f32(
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float %f1, float %f2,
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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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; Check the low end of the SEB range.
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define float @f2(float %f1, float *%ptr) #0 {
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; CHECK-LABEL: f2:
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; CHECK: seb %f0, 0(%r2)
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; CHECK: br %r14
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%f2 = load float, float *%ptr
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%res = call float @llvm.experimental.constrained.fsub.f32(
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float %f1, float %f2,
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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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; Check the high end of the aligned SEB range.
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define float @f3(float %f1, float *%base) #0 {
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; CHECK-LABEL: f3:
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; CHECK: seb %f0, 4092(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 1023
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%f2 = load float, float *%ptr
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%res = call float @llvm.experimental.constrained.fsub.f32(
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float %f1, float %f2,
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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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; Check the next word up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define float @f4(float %f1, float *%base) #0 {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r2, 4096
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; CHECK: seb %f0, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 1024
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%f2 = load float, float *%ptr
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%res = call float @llvm.experimental.constrained.fsub.f32(
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float %f1, float %f2,
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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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; Check negative displacements, which also need separate address logic.
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define float @f5(float %f1, float *%base) #0 {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r2, -4
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; CHECK: seb %f0, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 -1
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%f2 = load float, float *%ptr
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%res = call float @llvm.experimental.constrained.fsub.f32(
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float %f1, float %f2,
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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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; Check that SEB allows indices.
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define float @f6(float %f1, float *%base, i64 %index) #0 {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r3, 2
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; CHECK: seb %f0, 400(%r1,%r2)
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; CHECK: br %r14
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%ptr1 = getelementptr float, float *%base, i64 %index
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%ptr2 = getelementptr float, float *%ptr1, i64 100
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%f2 = load float, float *%ptr2
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%res = call float @llvm.experimental.constrained.fsub.f32(
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float %f1, float %f2,
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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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; Check that subtractions of spilled values can use SEB rather than SEBR.
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define float @f7(float *%ptr0) #0 {
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; CHECK-LABEL: f7:
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; CHECK: brasl %r14, foo@PLT
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; CHECK-SCALAR: seb %f0, 16{{[04]}}(%r15)
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; CHECK: br %r14
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%ptr1 = getelementptr float, float *%ptr0, i64 2
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%ptr2 = getelementptr float, float *%ptr0, i64 4
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%ptr3 = getelementptr float, float *%ptr0, i64 6
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%ptr4 = getelementptr float, float *%ptr0, i64 8
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%ptr5 = getelementptr float, float *%ptr0, i64 10
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%ptr6 = getelementptr float, float *%ptr0, i64 12
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%ptr7 = getelementptr float, float *%ptr0, i64 14
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%ptr8 = getelementptr float, float *%ptr0, i64 16
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%ptr9 = getelementptr float, float *%ptr0, i64 18
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%ptr10 = getelementptr float, float *%ptr0, i64 20
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%val0 = load float, float *%ptr0
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%val1 = load float, float *%ptr1
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%val2 = load float, float *%ptr2
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%val3 = load float, float *%ptr3
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%val4 = load float, float *%ptr4
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%val5 = load float, float *%ptr5
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%val6 = load float, float *%ptr6
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%val7 = load float, float *%ptr7
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%val8 = load float, float *%ptr8
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%val9 = load float, float *%ptr9
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%val10 = load float, float *%ptr10
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%ret = call float @foo() #0
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%sub0 = call float @llvm.experimental.constrained.fsub.f32(
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float %ret, float %val0,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%sub1 = call float @llvm.experimental.constrained.fsub.f32(
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float %sub0, float %val1,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%sub2 = call float @llvm.experimental.constrained.fsub.f32(
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float %sub1, float %val2,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%sub3 = call float @llvm.experimental.constrained.fsub.f32(
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float %sub2, float %val3,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%sub4 = call float @llvm.experimental.constrained.fsub.f32(
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float %sub3, float %val4,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%sub5 = call float @llvm.experimental.constrained.fsub.f32(
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float %sub4, float %val5,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%sub6 = call float @llvm.experimental.constrained.fsub.f32(
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float %sub5, float %val6,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%sub7 = call float @llvm.experimental.constrained.fsub.f32(
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float %sub6, float %val7,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%sub8 = call float @llvm.experimental.constrained.fsub.f32(
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float %sub7, float %val8,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%sub9 = call float @llvm.experimental.constrained.fsub.f32(
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float %sub8, float %val9,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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%sub10 = call float @llvm.experimental.constrained.fsub.f32(
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float %sub9, float %val10,
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metadata !"round.dynamic",
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metadata !"fpexcept.strict") #0
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ret float %sub10
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}
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attributes #0 = { strictfp }
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