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; RUN: llc -mtriple=i686-unknown-linux-gnu -enable-misched=false < %s | FileCheck %s
define fastcc i8 @fold32to8(i32 %add, i8 %spill) {
; CHECK-LABEL: fold32to8:
; CHECK: movl %ecx, (%esp) # 4-byte Spill
; CHECK: subb (%esp), %dl # 1-byte Folded Reload
entry:
tail call void asm sideeffect "", "~{eax},~{ebx},~{ecx},~{edi},~{esi},~{ebp},~{dirflag},~{fpsr},~{flags}"()
%trunc = trunc i32 %add to i8
%sub = sub i8 %spill, %trunc
ret i8 %sub
}
; Do not fold a 1-byte store into a 4-byte spill slot
define fastcc i8 @nofold(i32 %add, i8 %spill) {
; CHECK-LABEL: nofold:
; CHECK: movl %edx, (%esp) # 4-byte Spill
; CHECK: movl (%esp), %eax # 4-byte Reload
; CHECK: subb %cl, %al
entry:
tail call void asm sideeffect "", "~{eax},~{ebx},~{edx},~{edi},~{esi},~{ebp},~{dirflag},~{fpsr},~{flags}"()
%trunc = trunc i32 %add to i8
%sub = sub i8 %spill, %trunc
ret i8 %sub
}
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