mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 12:12:47 +01:00
109 lines
3.7 KiB
LLVM
109 lines
3.7 KiB
LLVM
|
;RUN: opt -gvn -S < %s | FileCheck %s
|
||
|
|
|
||
|
|
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n8:16:32-S64"
|
||
|
|
target triple = "thumbv7--linux-gnueabi"
|
||
|
|
|
||
|
|
%struct.a = type { i16, i16, [1 x %union.a] }
|
||
|
|
%union.a = type { i32 }
|
||
|
|
|
||
|
|
@length = external global [0 x i32], align 4
|
||
|
|
|
||
|
|
; Function Attrs: nounwind
|
||
|
|
define fastcc void @foo(%struct.a* nocapture readonly %x) {
|
||
|
|
;CHECK-LABEL: foo
|
||
|
|
entry:
|
||
|
|
br label %bb0
|
||
|
|
|
||
|
|
bb0: ; preds = %land.lhs.true, %entry
|
||
|
|
;CHECK: bb0:
|
||
|
|
%x.tr = phi %struct.a* [ %x, %entry ], [ null, %land.lhs.true ]
|
||
|
|
%code1 = getelementptr inbounds %struct.a, %struct.a* %x.tr, i32 0, i32 0
|
||
|
|
%0 = load i16, i16* %code1, align 4
|
||
|
|
; CHECK: load i32, i32*
|
||
|
|
%conv = zext i16 %0 to i32
|
||
|
|
switch i32 %conv, label %if.end.50 [
|
||
|
|
i32 43, label %cleanup
|
||
|
|
i32 52, label %if.then.5
|
||
|
|
]
|
||
|
|
|
||
|
|
if.then.5: ; preds = %bb0
|
||
|
|
br i1 undef, label %land.lhs.true, label %if.then.26
|
||
|
|
|
||
|
|
land.lhs.true: ; preds = %if.then.5
|
||
|
|
br i1 undef, label %cleanup, label %bb0
|
||
|
|
|
||
|
|
if.then.26: ; preds = %if.then.5
|
||
|
|
%x.tr.lcssa163 = phi %struct.a* [ %x.tr, %if.then.5 ]
|
||
|
|
br i1 undef, label %cond.end, label %cond.false
|
||
|
|
|
||
|
|
cond.false: ; preds = %if.then.26
|
||
|
|
; CHECK: cond.false:
|
||
|
|
; CHECK-NOT: load
|
||
|
|
%mode = getelementptr inbounds %struct.a, %struct.a* %x.tr.lcssa163, i32 0, i32 1
|
||
|
|
%bf.load = load i16, i16* %mode, align 2
|
||
|
|
%bf.shl = shl i16 %bf.load, 8
|
||
|
|
br label %cond.end
|
||
|
|
|
||
|
|
cond.end: ; preds = %cond.false, %if.then.26
|
||
|
|
br i1 undef, label %if.then.44, label %cleanup
|
||
|
|
|
||
|
|
if.then.44: ; preds = %cond.end
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
if.end.50: ; preds = %bb0
|
||
|
|
;%CHECK: if.end.50:
|
||
|
|
%conv.lcssa = phi i32 [ %conv, %bb0 ]
|
||
|
|
%arrayidx52 = getelementptr inbounds [0 x i32], [0 x i32]* @length, i32 0, i32 %conv.lcssa
|
||
|
|
%1 = load i32, i32* %arrayidx52, align 4
|
||
|
|
br i1 undef, label %for.body.57, label %cleanup
|
||
|
|
|
||
|
|
for.body.57: ; preds = %if.end.50
|
||
|
|
%i.2157 = add nsw i32 %1, -1
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
cleanup: ; preds = %if.end.50, %cond.end, %land.lhs.true, %bb0
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
@yy_c_buf_p = external unnamed_addr global i8*, align 4
|
||
|
|
@dfg_text = external global i8*, align 4
|
||
|
|
|
||
|
|
define void @dfg_lex() {
|
||
|
|
;CHECK-LABEL: dfg_lex
|
||
|
|
entry:
|
||
|
|
br label %while.bodythread-pre-split
|
||
|
|
|
||
|
|
while.bodythread-pre-split: ; preds = %while.end, %while.end, %entry
|
||
|
|
br i1 undef, label %if.then.14, label %if.end.15
|
||
|
|
|
||
|
|
if.then.14: ; preds = %while.end, %while.bodythread-pre-split
|
||
|
|
%v1 = load i32, i32* bitcast (i8** @dfg_text to i32*), align 4
|
||
|
|
%sub.ptr.sub = sub i32 undef, %v1
|
||
|
|
br label %if.end.15
|
||
|
|
|
||
|
|
if.end.15: ; preds = %if.then.14, %while.bodythread-pre-split
|
||
|
|
%v2 = load i8*, i8** @yy_c_buf_p, align 4
|
||
|
|
br label %while.cond.16
|
||
|
|
|
||
|
|
while.cond.16: ; preds = %while.cond.16, %if.end.15
|
||
|
|
br i1 undef, label %while.cond.16, label %while.end
|
||
|
|
|
||
|
|
while.end: ; preds = %while.cond.16
|
||
|
|
%add.ptr = getelementptr inbounds i8, i8* %v2, i32 undef
|
||
|
|
store i8* %add.ptr, i8** @dfg_text, align 4
|
||
|
|
%sub.ptr.rhs.cast25 = ptrtoint i8* %add.ptr to i32
|
||
|
|
%sub.ptr.sub26 = sub i32 0, %sub.ptr.rhs.cast25
|
||
|
|
switch i32 undef, label %sw.default [
|
||
|
|
i32 65, label %while.bodythread-pre-split
|
||
|
|
i32 3, label %return
|
||
|
|
i32 57, label %while.bodythread-pre-split
|
||
|
|
i32 60, label %if.then.14
|
||
|
|
]
|
||
|
|
|
||
|
|
sw.default: ; preds = %while.end
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
return: ; preds = %while.end
|
||
|
|
ret void
|
||
|
|
}
|