derek.holloway
7502bf64a4
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62 lines
1.6 KiB
LLVM
62 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=arm-eabi -float-abi=soft -verify-machineinstrs < %s \
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; RUN: | FileCheck --check-prefixes=ARM %s
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; RUN: llc -mtriple=arm-eabi -float-abi=soft -verify-machineinstrs < %s \
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; RUN: | FileCheck --check-prefixes=NOLIB %s
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; Check Y = FNEG(X) -> Y = X ^ sign mask and no lib call is generated.
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define void @test1(ptr %a, ptr %b) {
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; ARM-LABEL: test1:
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; ARM: @ %bb.0: @ %entry
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; ARM-NEXT: ldr r1, [r1]
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; ARM-NEXT: eor r1, r1, #-2147483648
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; ARM-NEXT: str r1, [r0]
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; ARM-NEXT: mov pc, lr
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; NOLIB-LABEL: test1:
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; NOLIB: eor
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; NOLIB-NOT: bl __aeabi_fsub
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entry:
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%0 = load float, ptr %b
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%neg = fneg float %0
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store float %neg, ptr %a
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ret void
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}
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define void @test2(ptr %a, ptr %b) {
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; ARM-LABEL: test2:
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; ARM: @ %bb.0: @ %entry
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; ARM-NEXT: ldr r2, [r1]
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; ARM-NEXT: ldr r1, [r1, #4]
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; ARM-NEXT: str r2, [r0]
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; ARM-NEXT: eor r1, r1, #-2147483648
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; ARM-NEXT: str r1, [r0, #4]
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; ARM-NEXT: mov pc, lr
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; NOLIB-LABEL: test2:
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; NOLIB: eor
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; NOLIB-NOT: bl __aeabi_dsub
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entry:
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%0 = load double, ptr %b
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%neg = fneg double %0
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store double %neg, ptr %a
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ret void
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}
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define void @test3(ptr %a, ptr %b) {
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; ARM-LABEL: test3:
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; ARM: @ %bb.0: @ %entry
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; ARM-NEXT: ldm r1, {r2, r3, r12}
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; ARM-NEXT: ldr r1, [r1, #12]
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; ARM-NEXT: stm r0, {r2, r3, r12}
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; ARM-NEXT: eor r1, r1, #-2147483648
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; ARM-NEXT: str r1, [r0, #12]
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; ARM-NEXT: mov pc, lr
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; NOLIB-LABEL: test3:
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; NOLIB: eor
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; NOLIB-NOT: bl __subtf3
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entry:
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%0 = load fp128, ptr %b
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%neg = fneg fp128 %0
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store fp128 %neg, ptr %a
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ret void
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}
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