xref: /aosp_15_r20/external/llvm/test/CodeGen/ARM/fcopysign.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)

; RUN: llc < %s -disable-post-ra -mtriple=armv7-apple-darwin -mcpu=cortex-a8 | FileCheck %s -check-prefix=SOFT
; RUN: llc < %s -disable-post-ra -mtriple=armv7-gnueabi -float-abi=hard -mcpu=cortex-a8 | FileCheck %s -check-prefix=HARD

; rdar://8984306
define float @test1(float %x, float %y) nounwind {
entry:
; SOFT-LABEL: test1:
; SOFT: lsr r1, r1, #31
; SOFT: bfi r0, r1, #31, #1

; HARD-LABEL: test1:
; HARD: vmov.i32 [[REG1:(d[0-9]+)]], #0x80000000
; HARD: vbsl [[REG1]], d
  %0 = tail call float @copysignf(float %x, float %y) nounwind readnone
  ret float %0
}

define double @test2(double %x, double %y) nounwind {
entry:
; SOFT-LABEL: test2:
; SOFT: lsr r2, r3, #31
; SOFT: bfi r1, r2, #31, #1

; HARD-LABEL: test2:
; HARD: vmov.i32 [[REG2:(d[0-9]+)]], #0x80000000
; HARD: vshl.i64 [[REG2]], [[REG2]], #32
; HARD: vbsl [[REG2]], d1, d0
  %0 = tail call double @copysign(double %x, double %y) nounwind readnone
  ret double %0
}

define double @test3(double %x, double %y, double %z) nounwind {
entry:
; SOFT-LABEL: test3:
; SOFT: vmov.i32 [[REG3:(d[0-9]+)]], #0x80000000
; SOFT: vshl.i64 [[REG3]], [[REG3]], #32
; SOFT: vbsl [[REG3]],
  %0 = fmul double %x, %y
  %1 = tail call double @copysign(double %0, double %z) nounwind readnone
  ret double %1
}

; rdar://9287902
define float @test4() nounwind {
entry:
; SOFT-LABEL: test4:
; SOFT: vmov [[REG7:(d[0-9]+)]], r0, r1
; SOFT: vmov.i32 [[REG6:(d[0-9]+)]], #0x80000000
; SOFT: vshr.u64 [[REG7]], [[REG7]], #32
; SOFT: vbsl [[REG6]], [[REG7]],
  %0 = tail call double (...) @bar() nounwind
  %1 = fptrunc double %0 to float
  %2 = tail call float @copysignf(float 5.000000e-01, float %1) nounwind readnone
  %3 = fadd float %1, %2
  ret float %3
}

declare double @bar(...)
declare double @copysign(double, double) nounwind
declare float @copysignf(float, float) nounwind