mirror of
https://github.com/RPCS3/llvm.git
synced 2024-12-13 23:18:58 +00:00
b667d698ac
The size savings are significant, and from what I can tell, both ICC and GCC do this. Differential Revision: http://reviews.llvm.org/D18573 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264966 91177308-0d34-0410-b5e6-96231b3b80d8
46 lines
1.4 KiB
LLVM
46 lines
1.4 KiB
LLVM
; RUN: llc < %s -mtriple=i386-apple-darwin -disable-fp-elim -no-x86-call-frame-opt | FileCheck %s
|
|
|
|
%struct.decode_t = type { i8, i8, i8, i8, i16, i8, i8, %struct.range_t** }
|
|
%struct.range_t = type { float, float, i32, i32, i32, [0 x i8] }
|
|
|
|
define i32 @decode_byte(%struct.decode_t* %decode) nounwind {
|
|
; CHECK-LABEL: decode_byte:
|
|
; CHECK: pushl
|
|
; CHECK: popl
|
|
; CHECK: jmp
|
|
; CHECK: popl
|
|
entry:
|
|
%tmp2 = getelementptr %struct.decode_t, %struct.decode_t* %decode, i32 0, i32 4 ; <i16*> [#uses=1]
|
|
%tmp23 = bitcast i16* %tmp2 to i32* ; <i32*> [#uses=1]
|
|
%tmp4 = load i32, i32* %tmp23 ; <i32> [#uses=1]
|
|
%tmp514 = lshr i32 %tmp4, 24 ; <i32> [#uses=1]
|
|
%tmp56 = trunc i32 %tmp514 to i8 ; <i8> [#uses=1]
|
|
%tmp7 = icmp eq i8 %tmp56, 0 ; <i1> [#uses=1]
|
|
br i1 %tmp7, label %UnifiedReturnBlock, label %cond_true
|
|
|
|
cond_true: ; preds = %entry
|
|
%tmp10 = tail call i32 @f( %struct.decode_t* %decode ) ; <i32> [#uses=1]
|
|
ret i32 %tmp10
|
|
|
|
UnifiedReturnBlock: ; preds = %entry
|
|
ret i32 0
|
|
}
|
|
|
|
declare i32 @f(%struct.decode_t*)
|
|
|
|
|
|
; There should be no store for the undef operand.
|
|
|
|
; CHECK: _test2:
|
|
; CHECK-NOT: 8(%esp)
|
|
; CHECK: 4(%esp)
|
|
; CHECK-NOT: 8(%esp)
|
|
; CHECK: calll
|
|
declare i32 @foo(i32, i32, i32)
|
|
|
|
define void @test2() nounwind {
|
|
entry:
|
|
%call = call i32 @foo(i32 8, i32 6, i32 undef)
|
|
ret void
|
|
}
|