derek.holloway
7502bf64a4
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176 lines
5.8 KiB
LLVM
176 lines
5.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc < %s -mtriple=i686-linux-gnu -mattr=+cmov -fast-isel -fast-isel-abort=1 | FileCheck %s --check-prefix=X86
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; RUN: llc < %s -mtriple=i686-linux-gnu -mattr=+cmov -global-isel -global-isel-abort=1 | FileCheck %s --check-prefix=X86-GISEL
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; RUN: llc < %s -mtriple=i686-linux-gnu -mattr=+cmov -fast-isel=0 -global-isel=0 | FileCheck %s --check-prefix=X86
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; RUN: llc < %s -mtriple=x86_64-linux-gnu -fast-isel -fast-isel-abort=1 | FileCheck %s --check-prefix=X64
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; RUN: llc < %s -mtriple=x86_64-linux-gnu -global-isel -global-isel-abort=1 | FileCheck %s --check-prefix=X64-GISEL
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; RUN: llc < %s -mtriple=x86_64-linux-gnu -fast-isel=0 -global-isel=0 | FileCheck %s --check-prefix=X64
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; Test that we can generate an fcmove, and also that it passes verification.
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define x86_fp80 @cmove_cmp(x86_fp80 %a, x86_fp80 %b, i32 %c) {
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; X86-LABEL: cmove_cmp:
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; X86: # %bb.0:
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; X86-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-NEXT: cmpl $0, {{[0-9]+}}(%esp)
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; X86-NEXT: fadd %st(1), %st
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; X86-NEXT: fxch %st(1)
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; X86-NEXT: fcmove %st(1), %st
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; X86-NEXT: fstp %st(1)
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; X86-NEXT: retl
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;
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; X86-GISEL-LABEL: cmove_cmp:
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; X86-GISEL: # %bb.0:
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; X86-GISEL-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-GISEL-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-GISEL-NEXT: xorl %eax, %eax
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; X86-GISEL-NEXT: cmpl $0, {{[0-9]+}}(%esp)
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; X86-GISEL-NEXT: sete %al
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; X86-GISEL-NEXT: fadd %st, %st(1)
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; X86-GISEL-NEXT: andl $1, %eax
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; X86-GISEL-NEXT: testl %eax, %eax
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; X86-GISEL-NEXT: fxch %st(1)
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; X86-GISEL-NEXT: fcmove %st(1), %st
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; X86-GISEL-NEXT: fstp %st(1)
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; X86-GISEL-NEXT: retl
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;
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; X64-LABEL: cmove_cmp:
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; X64: # %bb.0:
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; X64-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-NEXT: testl %edi, %edi
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; X64-NEXT: fadd %st(1), %st
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; X64-NEXT: fxch %st(1)
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; X64-NEXT: fcmove %st(1), %st
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; X64-NEXT: fstp %st(1)
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; X64-NEXT: retq
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;
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; X64-GISEL-LABEL: cmove_cmp:
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; X64-GISEL: # %bb.0:
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; X64-GISEL-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-GISEL-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-GISEL-NEXT: xorl %eax, %eax
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; X64-GISEL-NEXT: cmpl $0, %edi
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; X64-GISEL-NEXT: sete %al
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; X64-GISEL-NEXT: fadd %st, %st(1)
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; X64-GISEL-NEXT: andl $1, %eax
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; X64-GISEL-NEXT: testl %eax, %eax
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; X64-GISEL-NEXT: fxch %st(1)
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; X64-GISEL-NEXT: fcmove %st(1), %st
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; X64-GISEL-NEXT: fstp %st(1)
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; X64-GISEL-NEXT: retq
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%test = icmp eq i32 %c, 0
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%add = fadd x86_fp80 %a, %b
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%ret = select i1 %test, x86_fp80 %add, x86_fp80 %b
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ret x86_fp80 %ret
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}
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define x86_fp80 @cmove_arg(x86_fp80 %a, x86_fp80 %b, i1 %test) {
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; X86-LABEL: cmove_arg:
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; X86: # %bb.0:
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; X86-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-NEXT: fadd %st(1), %st
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; X86-NEXT: testb $1, {{[0-9]+}}(%esp)
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; X86-NEXT: fxch %st(1)
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; X86-NEXT: fcmovne %st(1), %st
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; X86-NEXT: fstp %st(1)
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; X86-NEXT: retl
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;
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; X86-GISEL-LABEL: cmove_arg:
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; X86-GISEL: # %bb.0:
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; X86-GISEL-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-GISEL-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-GISEL-NEXT: fadd %st, %st(1)
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; X86-GISEL-NEXT: movl $1, %eax
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; X86-GISEL-NEXT: andl {{[0-9]+}}(%esp), %eax
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; X86-GISEL-NEXT: testl %eax, %eax
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; X86-GISEL-NEXT: fxch %st(1)
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; X86-GISEL-NEXT: fcmove %st(1), %st
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; X86-GISEL-NEXT: fstp %st(1)
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; X86-GISEL-NEXT: retl
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;
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; X64-LABEL: cmove_arg:
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; X64: # %bb.0:
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; X64-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-NEXT: fadd %st(1), %st
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; X64-NEXT: testb $1, %dil
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; X64-NEXT: fxch %st(1)
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; X64-NEXT: fcmovne %st(1), %st
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; X64-NEXT: fstp %st(1)
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; X64-NEXT: retq
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;
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; X64-GISEL-LABEL: cmove_arg:
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; X64-GISEL: # %bb.0:
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; X64-GISEL-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-GISEL-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-GISEL-NEXT: fadd %st, %st(1)
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; X64-GISEL-NEXT: andl $1, %edi
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; X64-GISEL-NEXT: testl %edi, %edi
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; X64-GISEL-NEXT: fxch %st(1)
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; X64-GISEL-NEXT: fcmove %st(1), %st
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; X64-GISEL-NEXT: fstp %st(1)
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; X64-GISEL-NEXT: retq
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%add = fadd x86_fp80 %a, %b
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%ret = select i1 %test, x86_fp80 %add, x86_fp80 %b
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ret x86_fp80 %ret
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}
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define x86_fp80 @cmove_load(x86_fp80 %a, x86_fp80 %b, ptr %p) {
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; X86-LABEL: cmove_load:
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; X86: # %bb.0:
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-NEXT: fadd %st(1), %st
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; X86-NEXT: cmpb $0, (%eax)
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; X86-NEXT: fxch %st(1)
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; X86-NEXT: fcmovne %st(1), %st
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; X86-NEXT: fstp %st(1)
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; X86-NEXT: retl
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;
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; X86-GISEL-LABEL: cmove_load:
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; X86-GISEL: # %bb.0:
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; X86-GISEL-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-GISEL-NEXT: fldt {{[0-9]+}}(%esp)
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; X86-GISEL-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-GISEL-NEXT: fadd %st, %st(1)
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; X86-GISEL-NEXT: movzbl (%eax), %eax
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; X86-GISEL-NEXT: andl $1, %eax
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; X86-GISEL-NEXT: testl %eax, %eax
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; X86-GISEL-NEXT: fxch %st(1)
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; X86-GISEL-NEXT: fcmove %st(1), %st
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; X86-GISEL-NEXT: fstp %st(1)
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; X86-GISEL-NEXT: retl
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;
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; X64-LABEL: cmove_load:
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; X64: # %bb.0:
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; X64-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-NEXT: fadd %st(1), %st
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; X64-NEXT: cmpb $0, (%rdi)
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; X64-NEXT: fxch %st(1)
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; X64-NEXT: fcmovne %st(1), %st
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; X64-NEXT: fstp %st(1)
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; X64-NEXT: retq
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;
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; X64-GISEL-LABEL: cmove_load:
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; X64-GISEL: # %bb.0:
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; X64-GISEL-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-GISEL-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-GISEL-NEXT: fadd %st, %st(1)
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; X64-GISEL-NEXT: movzbl (%rdi), %eax
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; X64-GISEL-NEXT: andl $1, %eax
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; X64-GISEL-NEXT: testl %eax, %eax
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; X64-GISEL-NEXT: fxch %st(1)
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; X64-GISEL-NEXT: fcmove %st(1), %st
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; X64-GISEL-NEXT: fstp %st(1)
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; X64-GISEL-NEXT: retq
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%test = load i1, ptr %p
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%add = fadd x86_fp80 %a, %b
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%ret = select i1 %test, x86_fp80 %add, x86_fp80 %b
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ret x86_fp80 %ret
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}
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