e0ed0333f0
Re-landing #116970 after fixing miscompilation error. The original change made it possible for CMPZ to have multiple uses; `ARMDAGToDAGISel::SelectCMPZ` was not prepared for this. Pull Request: https://github.com/llvm/llvm-project/pull/118887 Original commit message: Following #116547 and #116676, this PR changes the type of results and operands of some nodes to accept / return a normal type instead of Glue. Unfortunately, changing the result type of one node requires changing the operand types of all potential consumer nodes, which in turn requires changing the result types of all other possible producer nodes. So this is a bulk change.
61 lines
1.9 KiB
LLVM
61 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=armv7 %s -o - | FileCheck %s
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; RUN: llc -mtriple=thumbv7 %s -o - | FileCheck --check-prefix=THUMB %s
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declare double @fn()
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define void @test(ptr %p, ptr %res) nounwind {
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; CHECK-LABEL: test:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: push {r4, r5, r11, lr}
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; CHECK-NEXT: vldr d16, [r0]
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; CHECK-NEXT: mov r4, r1
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; CHECK-NEXT: vcmp.f64 d16, #0
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; CHECK-NEXT: vmrs APSR_nzcv, fpscr
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; CHECK-NEXT: mrs r5, apsr
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; CHECK-NEXT: vneg.f64 d17, d16
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; CHECK-NEXT: vmovne.f64 d16, d17
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; CHECK-NEXT: vstr d16, [r1]
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; CHECK-NEXT: bl fn
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; CHECK-NEXT: vmov d16, r0, r1
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; CHECK-NEXT: eor r1, r1, #-2147483648
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; CHECK-NEXT: msr APSR_nzcvq, r5
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; CHECK-NEXT: vmov d17, r0, r1
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; CHECK-NEXT: vmovne.f64 d16, d17
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; CHECK-NEXT: vstr d16, [r4]
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; CHECK-NEXT: pop {r4, r5, r11, pc}
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;
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; THUMB-LABEL: test:
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; THUMB: @ %bb.0: @ %entry
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; THUMB-NEXT: push {r4, r5, r7, lr}
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; THUMB-NEXT: vldr d16, [r0]
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; THUMB-NEXT: mov r4, r1
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; THUMB-NEXT: vcmp.f64 d16, #0
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; THUMB-NEXT: vmrs APSR_nzcv, fpscr
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; THUMB-NEXT: mrs r5, apsr
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; THUMB-NEXT: vneg.f64 d17, d16
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; THUMB-NEXT: it ne
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; THUMB-NEXT: vmovne.f64 d16, d17
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; THUMB-NEXT: vstr d16, [r1]
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; THUMB-NEXT: bl fn
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; THUMB-NEXT: vmov d16, r0, r1
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; THUMB-NEXT: eor r1, r1, #-2147483648
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; THUMB-NEXT: msr APSR_nzcvq, r5
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; THUMB-NEXT: vmov d17, r0, r1
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; THUMB-NEXT: it ne
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; THUMB-NEXT: vmovne.f64 d16, d17
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; THUMB-NEXT: vstr d16, [r4]
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; THUMB-NEXT: pop {r4, r5, r7, pc}
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entry:
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%x = load double, ptr %p
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%cmp = fcmp une double %x, 0.000000e+00
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%nx = fneg double %x
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%sx = select i1 %cmp, double %nx, double %x
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store double %sx, ptr %res
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%y = call double @fn()
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%ny = fneg double %y
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%sy = select i1 %cmp, double %ny, double %y
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store double %sy, ptr %res
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ret void
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}
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