| Chris Lattner | 734d7c2 | 2011-04-26 20:45:33 +0000 | [diff] [blame^] | 1 | ; RUN: opt -O3 -S %s | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| 4 | target triple = "x86_64-apple-macosx10.6.7" |
| 5 | |
| 6 | declare i8* @malloc(i64) |
| 7 | declare void @free(i8*) |
| 8 | |
| 9 | |
| 10 | ; PR2338 |
| 11 | define void @test1() nounwind ssp { |
| 12 | %retval = alloca i32, align 4 |
| 13 | %i = alloca i8*, align 8 |
| 14 | %call = call i8* @malloc(i64 1) |
| 15 | store i8* %call, i8** %i, align 8 |
| 16 | %tmp = load i8** %i, align 8 |
| 17 | store i8 1, i8* %tmp |
| 18 | %tmp1 = load i8** %i, align 8 |
| 19 | call void @free(i8* %tmp1) |
| 20 | ret void |
| 21 | |
| 22 | ; CHECK: @test1 |
| 23 | ; CHECK-NEXT: ret void |
| 24 | } |
| 25 | |
| 26 | |
| 27 | ; PR6627 - This whole nasty sequence should be flattened down to a single |
| 28 | ; 32-bit comparison. |
| 29 | define void @test2(i8* %arrayidx) nounwind ssp { |
| 30 | entry: |
| 31 | %xx = bitcast i8* %arrayidx to i32* |
| 32 | %x1 = load i32* %xx, align 4 |
| 33 | %tmp = trunc i32 %x1 to i8 |
| 34 | %conv = zext i8 %tmp to i32 |
| 35 | %cmp = icmp eq i32 %conv, 127 |
| 36 | br i1 %cmp, label %land.lhs.true, label %if.end |
| 37 | |
| 38 | land.lhs.true: ; preds = %entry |
| 39 | %arrayidx4 = getelementptr inbounds i8* %arrayidx, i64 1 |
| 40 | %tmp5 = load i8* %arrayidx4, align 1 |
| 41 | %conv6 = zext i8 %tmp5 to i32 |
| 42 | %cmp7 = icmp eq i32 %conv6, 69 |
| 43 | br i1 %cmp7, label %land.lhs.true9, label %if.end |
| 44 | |
| 45 | land.lhs.true9: ; preds = %land.lhs.true |
| 46 | %arrayidx12 = getelementptr inbounds i8* %arrayidx, i64 2 |
| 47 | %tmp13 = load i8* %arrayidx12, align 1 |
| 48 | %conv14 = zext i8 %tmp13 to i32 |
| 49 | %cmp15 = icmp eq i32 %conv14, 76 |
| 50 | br i1 %cmp15, label %land.lhs.true17, label %if.end |
| 51 | |
| 52 | land.lhs.true17: ; preds = %land.lhs.true9 |
| 53 | %arrayidx20 = getelementptr inbounds i8* %arrayidx, i64 3 |
| 54 | %tmp21 = load i8* %arrayidx20, align 1 |
| 55 | %conv22 = zext i8 %tmp21 to i32 |
| 56 | %cmp23 = icmp eq i32 %conv22, 70 |
| 57 | br i1 %cmp23, label %if.then, label %if.end |
| 58 | |
| 59 | if.then: ; preds = %land.lhs.true17 |
| 60 | %call25 = call i32 (...)* @doo() |
| 61 | br label %if.end |
| 62 | |
| 63 | if.end: ; preds = %if.then, %land.lhs.true17, %land.lhs.true9, %land.lhs.true, %entry |
| 64 | ret void |
| 65 | |
| 66 | ; CHECK: @test2 |
| 67 | ; CHECK: %x1 = load i32* %xx, align 4 |
| 68 | ; CHECK-NEXT: icmp eq i32 %x1, 1179403647 |
| 69 | ; CHECK-NEXT: br i1 {{.*}}, label %if.then, label %if.end |
| 70 | } |
| 71 | |
| 72 | declare i32 @doo(...) |
| 73 | |