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.
68 lines
1.7 KiB
LLVM
68 lines
1.7 KiB
LLVM
; Test 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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; Test f64->f32.
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define float @f1(double %d1, double %d2) {
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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 = fptrunc double %d2 to float
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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(ptr %ptr) {
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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, ptr %ptr
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%res = fptrunc fp128 %val to float
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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(ptr %dst, ptr %ptr, float %d1, float %d2) {
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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, ptr %ptr
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%conv = fptrunc fp128 %val to float
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%res = fadd float %conv, %d2
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store float %res, ptr %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(ptr %ptr) {
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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, ptr %ptr
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%res = fptrunc fp128 %val to double
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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(ptr %dst, ptr %ptr, double %d1, double %d2) {
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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, ptr %ptr
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%conv = fptrunc fp128 %val to double
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%res = fadd double %conv, %d2
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store double %res, ptr %dst
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ret void
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}
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