a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
170 lines
5.4 KiB
LLVM
170 lines
5.4 KiB
LLVM
; Test 32-bit square root.
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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 @llvm.sqrt.f32(float)
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declare float @sqrtf(float)
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; Check register square root.
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define float @f1(float %val) {
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; CHECK-LABEL: f1:
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; CHECK: sqebr %f0, %f0
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; CHECK: br %r14
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%res = call float @llvm.sqrt.f32(float %val)
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ret float %res
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}
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; Check the low end of the SQEB range.
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define float @f2(ptr %ptr) {
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; CHECK-LABEL: f2:
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; CHECK: sqeb %f0, 0(%r2)
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; CHECK: br %r14
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%val = load float, ptr %ptr
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%res = call float @llvm.sqrt.f32(float %val)
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ret float %res
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}
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; Check the high end of the aligned SQEB range.
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define float @f3(ptr %base) {
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; CHECK-LABEL: f3:
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; CHECK: sqeb %f0, 4092(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, ptr %base, i64 1023
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%val = load float, ptr %ptr
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%res = call float @llvm.sqrt.f32(float %val)
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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(ptr %base) {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r2, 4096
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; CHECK: sqeb %f0, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, ptr %base, i64 1024
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%val = load float, ptr %ptr
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%res = call float @llvm.sqrt.f32(float %val)
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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(ptr %base) {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r2, -4
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; CHECK: sqeb %f0, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr float, ptr %base, i64 -1
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%val = load float, ptr %ptr
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%res = call float @llvm.sqrt.f32(float %val)
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ret float %res
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}
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; Check that SQEB allows indices.
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define float @f6(ptr %base, i64 %index) {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r3, 2
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; CHECK: sqeb %f0, 400(%r1,%r2)
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; CHECK: br %r14
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%ptr1 = getelementptr float, ptr %base, i64 %index
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%ptr2 = getelementptr float, ptr %ptr1, i64 100
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%val = load float, ptr %ptr2
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%res = call float @llvm.sqrt.f32(float %val)
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ret float %res
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}
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; Test a case where we spill the source of at least one SQEBR. We want
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; to use SQEB if possible.
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define void @f7(ptr %ptr) {
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; CHECK-LABEL: f7:
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; CHECK-SCALAR: sqeb {{%f[0-9]+}}, 16{{[04]}}(%r15)
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; CHECK: br %r14
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%val0 = load volatile float, ptr %ptr
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%val1 = load volatile float, ptr %ptr
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%val2 = load volatile float, ptr %ptr
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%val3 = load volatile float, ptr %ptr
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%val4 = load volatile float, ptr %ptr
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%val5 = load volatile float, ptr %ptr
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%val6 = load volatile float, ptr %ptr
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%val7 = load volatile float, ptr %ptr
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%val8 = load volatile float, ptr %ptr
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%val9 = load volatile float, ptr %ptr
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%val10 = load volatile float, ptr %ptr
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%val11 = load volatile float, ptr %ptr
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%val12 = load volatile float, ptr %ptr
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%val13 = load volatile float, ptr %ptr
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%val14 = load volatile float, ptr %ptr
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%val15 = load volatile float, ptr %ptr
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%val16 = load volatile float, ptr %ptr
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%sqrt0 = call float @llvm.sqrt.f32(float %val0)
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%sqrt1 = call float @llvm.sqrt.f32(float %val1)
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%sqrt2 = call float @llvm.sqrt.f32(float %val2)
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%sqrt3 = call float @llvm.sqrt.f32(float %val3)
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%sqrt4 = call float @llvm.sqrt.f32(float %val4)
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%sqrt5 = call float @llvm.sqrt.f32(float %val5)
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%sqrt6 = call float @llvm.sqrt.f32(float %val6)
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%sqrt7 = call float @llvm.sqrt.f32(float %val7)
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%sqrt8 = call float @llvm.sqrt.f32(float %val8)
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%sqrt9 = call float @llvm.sqrt.f32(float %val9)
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%sqrt10 = call float @llvm.sqrt.f32(float %val10)
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%sqrt11 = call float @llvm.sqrt.f32(float %val11)
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%sqrt12 = call float @llvm.sqrt.f32(float %val12)
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%sqrt13 = call float @llvm.sqrt.f32(float %val13)
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%sqrt14 = call float @llvm.sqrt.f32(float %val14)
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%sqrt15 = call float @llvm.sqrt.f32(float %val15)
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%sqrt16 = call float @llvm.sqrt.f32(float %val16)
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store volatile float %val0, ptr %ptr
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store volatile float %val1, ptr %ptr
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store volatile float %val2, ptr %ptr
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store volatile float %val3, ptr %ptr
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store volatile float %val4, ptr %ptr
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store volatile float %val5, ptr %ptr
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store volatile float %val6, ptr %ptr
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store volatile float %val7, ptr %ptr
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store volatile float %val8, ptr %ptr
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store volatile float %val9, ptr %ptr
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store volatile float %val10, ptr %ptr
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store volatile float %val11, ptr %ptr
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store volatile float %val12, ptr %ptr
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store volatile float %val13, ptr %ptr
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store volatile float %val14, ptr %ptr
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store volatile float %val15, ptr %ptr
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store volatile float %val16, ptr %ptr
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store volatile float %sqrt0, ptr %ptr
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store volatile float %sqrt1, ptr %ptr
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store volatile float %sqrt2, ptr %ptr
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store volatile float %sqrt3, ptr %ptr
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store volatile float %sqrt4, ptr %ptr
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store volatile float %sqrt5, ptr %ptr
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store volatile float %sqrt6, ptr %ptr
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store volatile float %sqrt7, ptr %ptr
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store volatile float %sqrt8, ptr %ptr
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store volatile float %sqrt9, ptr %ptr
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store volatile float %sqrt10, ptr %ptr
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store volatile float %sqrt11, ptr %ptr
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store volatile float %sqrt12, ptr %ptr
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store volatile float %sqrt13, ptr %ptr
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store volatile float %sqrt14, ptr %ptr
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store volatile float %sqrt15, ptr %ptr
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store volatile float %sqrt16, ptr %ptr
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ret void
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}
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; Check that a call to the normal sqrtf function is lowered.
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define float @f8(float %dummy, float %val) {
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; CHECK-LABEL: f8:
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; CHECK: sqebr %f0, %f2
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; CHECK: cebr %f0, %f0
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; CHECK: bnor %r14
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; CHECK: {{ler|ldr}} %f0, %f2
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; CHECK: jg sqrtf@PLT
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%res = tail call float @sqrtf(float %val)
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ret float %res
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}
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