llvm/test/Transforms/InstCombine/2007-10-28-stacksave.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

48 lines
1.8 KiB
LLVM

; RUN: opt < %s -instcombine -S | grep {call.*stacksave}
; PR1745
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i686-apple-darwin8"
@p = weak global i8* null ; <i8**> [#uses=1]
define i32 @main() {
entry:
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
br label %lab
lab: ; preds = %cleanup31, %entry
%n.0 = phi i32 [ 0, %entry ], [ %tmp25, %cleanup31 ] ; <i32> [#uses=2]
%tmp2 = call i8* @llvm.stacksave( ) ; <i8*> [#uses=2]
%tmp4 = srem i32 %n.0, 47 ; <i32> [#uses=1]
%tmp5 = add i32 %tmp4, 1 ; <i32> [#uses=5]
%tmp7 = sub i32 %tmp5, 1 ; <i32> [#uses=0]
%tmp89 = zext i32 %tmp5 to i64 ; <i64> [#uses=1]
%tmp10 = mul i64 %tmp89, 32 ; <i64> [#uses=0]
%tmp12 = mul i32 %tmp5, 4 ; <i32> [#uses=0]
%tmp1314 = zext i32 %tmp5 to i64 ; <i64> [#uses=1]
%tmp15 = mul i64 %tmp1314, 32 ; <i64> [#uses=0]
%tmp17 = mul i32 %tmp5, 4 ; <i32> [#uses=1]
%tmp18 = alloca i8, i32 %tmp17 ; <i8*> [#uses=1]
%tmp1819 = bitcast i8* %tmp18 to i32* ; <i32*> [#uses=2]
%tmp21 = getelementptr i32* %tmp1819, i32 0 ; <i32*> [#uses=1]
store i32 1, i32* %tmp21, align 4
%tmp2223 = bitcast i32* %tmp1819 to i8* ; <i8*> [#uses=1]
volatile store i8* %tmp2223, i8** @p, align 4
%tmp25 = add i32 %n.0, 1 ; <i32> [#uses=2]
%tmp27 = icmp sle i32 %tmp25, 999999 ; <i1> [#uses=1]
%tmp2728 = zext i1 %tmp27 to i8 ; <i8> [#uses=1]
%toBool = icmp ne i8 %tmp2728, 0 ; <i1> [#uses=1]
br i1 %toBool, label %cleanup31, label %cond_next
cond_next: ; preds = %lab
call void @llvm.stackrestore( i8* %tmp2 )
ret i32 0
cleanup31: ; preds = %lab
call void @llvm.stackrestore( i8* %tmp2 )
br label %lab
}
declare i8* @llvm.stacksave()
declare void @llvm.stackrestore(i8*)