90c1474863
In ExpandFPLibCall, an assumption is made that all floating point libcalls that take integer arguments use unsigned integers. In the case of ldexp and frexp, this assumption is incorrect, leading to miscompilation and subsequent target-dependent incorrect operation. Indicate that ldexp and frexp utilize signed arguments in ExpandFPLibCall. Fixes #108904 Signed-off-by: Timothy Pearson <tpearson@solidsilicon.com>
67 lines
2.0 KiB
LLVM
67 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc -mcpu=pwr9 -mtriple=powerpc64le-unknown-unknown \
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; RUN: -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names < %s | FileCheck %s
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define float @call_ldexpf(float %a, i32 %b) {
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; CHECK-LABEL: call_ldexpf:
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; CHECK: # %bb.0:
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; CHECK-NEXT: mflr r0
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; CHECK-NEXT: stdu r1, -32(r1)
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; CHECK-NEXT: std r0, 48(r1)
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; CHECK-NEXT: .cfi_def_cfa_offset 32
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; CHECK-NEXT: .cfi_offset lr, 16
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; CHECK-NEXT: extsw r4, r4
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; CHECK-NEXT: bl ldexpf
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; CHECK-NEXT: nop
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; CHECK-NEXT: addi r1, r1, 32
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; CHECK-NEXT: ld r0, 16(r1)
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; CHECK-NEXT: mtlr r0
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; CHECK-NEXT: blr
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%result = call float @ldexpf(float %a, i32 %b)
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ret float %result
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}
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define double @call_ldexp(double %a, i32 %b) {
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; CHECK-LABEL: call_ldexp:
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; CHECK: # %bb.0:
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; CHECK-NEXT: mflr r0
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; CHECK-NEXT: stdu r1, -32(r1)
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; CHECK-NEXT: std r0, 48(r1)
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; CHECK-NEXT: .cfi_def_cfa_offset 32
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; CHECK-NEXT: .cfi_offset lr, 16
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; CHECK-NEXT: extsw r4, r4
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; CHECK-NEXT: bl ldexp
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; CHECK-NEXT: nop
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; CHECK-NEXT: addi r1, r1, 32
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; CHECK-NEXT: ld r0, 16(r1)
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; CHECK-NEXT: mtlr r0
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; CHECK-NEXT: blr
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%result = call double @ldexp(double %a, i32 %b)
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ret double %result
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}
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define ppc_fp128 @call_ldexpl(ppc_fp128 %a, i32 %b) {
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; CHECK-LABEL: call_ldexpl:
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; CHECK: # %bb.0:
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; CHECK-NEXT: mflr r0
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; CHECK-NEXT: stdu r1, -32(r1)
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; CHECK-NEXT: std r0, 48(r1)
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; CHECK-NEXT: .cfi_def_cfa_offset 32
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; CHECK-NEXT: .cfi_offset lr, 16
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; CHECK-NEXT: clrldi r5, r5, 32
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; CHECK-NEXT: bl ldexpl
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; CHECK-NEXT: nop
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; CHECK-NEXT: addi r1, r1, 32
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; CHECK-NEXT: ld r0, 16(r1)
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; CHECK-NEXT: mtlr r0
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; CHECK-NEXT: blr
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%result = call ppc_fp128 @ldexpl(ppc_fp128 %a, i32 %b)
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ret ppc_fp128 %result
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}
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declare float @ldexpf(float %a, i32 %b) #0
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declare double @ldexp(double %a, i32 %b) #0
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declare ppc_fp128 @ldexpl(ppc_fp128 %a, i32 %b) #0
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attributes #0 = { nounwind readonly }
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