1 ; RUN: llc %s -mtriple=i386-pc-linux -o - | FileCheck %s 2 ; RUN: llc %s -mtriple=i386-pc-win32 -o - | FileCheck -check-prefix=WIN %s 3 ; RUN: llc %s -mtriple=i386-pc-linux -fast-isel -o - | FileCheck -check-prefix=FAST %s 4 ; RUN: llc %s -mtriple=i386-pc-win32 -fast-isel -o - | FileCheck -check-prefix=FASTWIN %s 5 6 7 8 target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128" 9 target triple = "i386-unknown-linux-gnu" 10 11 ; Function Attrs: argmemonly nounwind 12 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1) #1 13 14 define void @use_memset(i8* inreg nocapture %dest, i8 inreg %c, i32 inreg %n) local_unnamed_addr #0 { 15 entry: 16 ;CHECK-LABEL: @use_memset 17 ;CHECK-NOT: push 18 ;CHECK: jmp memset 19 ;CHECK-NOT: retl 20 ;WIN-LABEL: @use_memset 21 ;WIN-NOT: push 22 ;WIN: jmp _memset 23 ;WIN-NOT: retl 24 ;FAST-LABEL: @use_memset 25 ;FAST: subl $12, %esp 26 ;FAST-NEXT: movzbl %dl, %edx 27 ;FAST-NEXT: calll memset 28 ;FAST-NEXT: addl $12, %esp 29 ;FASTWIN-LABEL: @use_memset 30 ;FASTWIN: movzbl %dl, %edx 31 ;FASTWIN-NEXT: calll _memset 32 ;FASTWIN-NEXT: retl 33 tail call void @llvm.memset.p0i8.i32(i8* %dest, i8 %c, i32 %n, i1 false) 34 ret void 35 } 36 37 ; Function Attrs: argmemonly nounwind 38 declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1) #1 39 40 41 attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 42 attributes #1 = { argmemonly nounwind } 43 44 !llvm.module.flags = !{!0} 45 !llvm.ident = !{!1} 46 47 !0 = !{i32 1, !"NumRegisterParameters", i32 3} 48 !1 = !{!"clang version 4.0.0 (trunk 288025) (llvm/trunk 288033)"} 49
