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| author | Chris Lattner <sabre@nondot.org> | 2004-11-07 00:24:14 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-11-07 00:24:14 +0000 |
| commit | 5993ea5da227480360b9d28e7db0cc0164c0f7c5 (patch) | |
| tree | e15e5fe77defa6028069f787a8bf7541d72ec585 /llvm/test/Regression/CodeGen/Generic/badFoldGEP.ll | |
| parent | 0624d4fd2f52e837c381e1617426930e2679dc67 (diff) | |
| download | bcm5719-llvm-5993ea5da227480360b9d28e7db0cc0164c0f7c5.tar.gz bcm5719-llvm-5993ea5da227480360b9d28e7db0cc0164c0f7c5.zip | |
These files are all moved to test/Regression/CodeGen/Generic
llvm-svn: 17538
Diffstat (limited to 'llvm/test/Regression/CodeGen/Generic/badFoldGEP.ll')
| -rw-r--r-- | llvm/test/Regression/CodeGen/Generic/badFoldGEP.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/llvm/test/Regression/CodeGen/Generic/badFoldGEP.ll b/llvm/test/Regression/CodeGen/Generic/badFoldGEP.ll new file mode 100644 index 00000000000..e0744af8a43 --- /dev/null +++ b/llvm/test/Regression/CodeGen/Generic/badFoldGEP.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as -f %s -o - | llc + +;; GetMemInstArgs() folded the two getElementPtr instructions together, +;; producing an illegal getElementPtr. That's because the type generated +;; by the last index for the first one is a structure field, not an array +;; element, and the second one indexes off that structure field. +;; The code is legal but not type-safe and the two GEPs should not be folded. +;; +;; This code fragment is from Spec/CINT2000/197.parser/197.parser.bc, +;; file post_process.c, function build_domain(). +;; (Modified to replace store with load and return load value.) +;; + +%Domain = type { sbyte*, int, int*, int, int, int*, %Domain* } +%domain_array = uninitialized global [497 x %Domain] + +implementation; Functions: + +declare void %opaque([497 x %Domain]*) + +int %main(int %argc, sbyte** %argv) { +bb0: ;[#uses=0] + call void %opaque([497 x %Domain]* %domain_array) + %cann-indvar-idxcast = cast int %argc to long + %reg841 = getelementptr [497 x %Domain]* %domain_array, long 0, long %cann-indvar-idxcast, ubyte 3 + %reg846 = getelementptr int* %reg841, long 1 + %reg820 = load int* %reg846 + ret int %reg820 +} |

