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| author | Fariborz Jahanian <fjahanian@apple.com> | 2012-06-06 22:58:50 +0000 |
|---|---|---|
| committer | Fariborz Jahanian <fjahanian@apple.com> | 2012-06-06 22:58:50 +0000 |
| commit | 67164852a7cc0923b857c84c515ad67969e81a67 (patch) | |
| tree | aec4a77ec43431b393a064448f6c08ba6de81efd /clang/test/CodeGen | |
| parent | 00e7dffefba3ce82eeaf31c2d9ce7f0d41a59426 (diff) | |
| download | bcm5719-llvm-67164852a7cc0923b857c84c515ad67969e81a67.tar.gz bcm5719-llvm-67164852a7cc0923b857c84c515ad67969e81a67.zip | |
When doing arithmatic on vla pointer, make sure
to emit vla size to prevent an irgen crash.
// rdar://11485774
llvm-svn: 158117
Diffstat (limited to 'clang/test/CodeGen')
| -rw-r--r-- | clang/test/CodeGen/vla.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/clang/test/CodeGen/vla.c b/clang/test/CodeGen/vla.c index 9e62da52e02..d34f26b779e 100644 --- a/clang/test/CodeGen/vla.c +++ b/clang/test/CodeGen/vla.c @@ -142,3 +142,23 @@ int test4(unsigned n, char (*p)[n][n+1][6]) { // CHECK-NEXT: ret i32 [[T7]] return p2 - p; } + +// rdar://11485774 +void test5(void) +{ + // CHECK: define void @test5( + int a[5], i = 0; + // CHECK: [[A:%.*]] = alloca [5 x i32], align 4 + // CHECK-NEXT: [[I:%.*]] = alloca i32, align 4 + // CHECK-NEXT: [[CL:%.*]] = alloca i32*, align 4 + // CHECK-NEXT: store i32 0, i32* [[I]], align 4 + + (typeof(++i, (int (*)[i])a)){&a} += 0; + // CHECK-NEXT: [[Z:%.*]] = bitcast [5 x i32]* [[A]] to i32* + // CHECK-NEXT: store i32* [[Z]], i32** [[CL]] + // CHECK-NEXT: [[O:%.*]] = load i32** [[CL]] + // CHECK-NEXT: [[T:%.*]] = load i32* [[I]], align 4 + // CHECK-NEXT: [[VLAIX:%.*]] = mul nsw i32 0, [[T]] + // CHECK-NEXT: [[ADDPTR:%.*]] = getelementptr inbounds i32* [[O]], i32 [[VLAIX]] + // CHECK-NEXT: store i32* [[ADDPTR]], i32** [[CL]] +} |
