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| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-linux-gnu -global-isel -verify-machineinstrs < %s -o - | FileCheck %s --check-prefix=ALL
define i8 @test() {
; ALL-LABEL: test:
; ALL: # %bb.0:
; ALL-NEXT: retq
ret i8 undef
}
define i8 @add_undef_i8(i8 %a) {
; ALL-LABEL: add_undef_i8:
; ALL: # %bb.0:
; ALL-NEXT: movl %edi, %eax
; ALL-NEXT: addb %al, %al
; ALL-NEXT: # kill: def $al killed $al killed $eax
; ALL-NEXT: retq
%r = add i8 %a, undef
ret i8 %r
}
define i16 @add_undef_i16(i16 %a) {
; ALL-LABEL: add_undef_i16:
; ALL: # %bb.0:
; ALL-NEXT: movl %edi, %eax
; ALL-NEXT: addw %ax, %ax
; ALL-NEXT: # kill: def $ax killed $ax killed $eax
; ALL-NEXT: retq
%r = add i16 %a, undef
ret i16 %r
}
define i16 @add_undef_i16_commute(i16 %a) {
; ALL-LABEL: add_undef_i16_commute:
; ALL: # %bb.0:
; ALL-NEXT: addw %di, %ax
; ALL-NEXT: retq
%r = add i16 undef, %a
ret i16 %r
}
define i32 @add_undef_i32(i32 %a) {
; ALL-LABEL: add_undef_i32:
; ALL: # %bb.0:
; ALL-NEXT: movl %edi, %eax
; ALL-NEXT: addl %eax, %eax
; ALL-NEXT: retq
%r = add i32 %a, undef
ret i32 %r
}
define float @test3() {
; ALL-LABEL: test3:
; ALL: # %bb.0:
; ALL-NEXT: retq
ret float undef
}
define float @test4(float %a) {
; ALL-LABEL: test4:
; ALL: # %bb.0:
; ALL-NEXT: addss %xmm0, %xmm0
; ALL-NEXT: retq
%r = fadd float %a, undef
ret float %r
}
|