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llvm-mirror/test/CodeGen/X86/pr13577.ll
Craig Topper c4b858bb71 [X86] Print %st(0) as %st when its implicit to the instruction. Continue printing it as %st(0) when its encoded in the instruction.
This is a step back from the change I made in r352985. This appears to be more consistent with gcc and objdump behavior.

llvm-svn: 353015
2019-02-04 04:15:10 +00:00

40 lines
1.1 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-darwin | FileCheck %s
; CHECK-LABEL: LCPI0_0:
; CHECK-NEXT: .long 4286578688
; CHECK-LABEL: LCPI0_1:
; CHECK-NEXT: .long 2139095040
define x86_fp80 @foo(x86_fp80 %a) {
; CHECK-LABEL: foo:
; CHECK: ## %bb.0:
; CHECK-NEXT: fldt {{[0-9]+}}(%rsp)
; CHECK-NEXT: fstpt -{{[0-9]+}}(%rsp)
; CHECK-NEXT: testb $-128, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: flds {{.*}}(%rip)
; CHECK-NEXT: flds {{.*}}(%rip)
; CHECK-NEXT: fcmovne %st(1), %st
; CHECK-NEXT: fstp %st(1)
; CHECK-NEXT: retq
%1 = tail call x86_fp80 @copysignl(x86_fp80 0xK7FFF8000000000000000, x86_fp80 %a) nounwind readnone
ret x86_fp80 %1
}
declare x86_fp80 @copysignl(x86_fp80, x86_fp80) nounwind readnone
; This would crash:
; https://llvm.org/bugs/show_bug.cgi?id=26070
define float @pr26070() {
; CHECK-LABEL: pr26070:
; CHECK: ## %bb.0:
; CHECK-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
; CHECK-NEXT: retq
%c = call float @copysignf(float 1.0, float undef) readnone
ret float %c
}
declare float @copysignf(float, float)