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| author | Reid Spencer <rspencer@reidspencer.com> | 2007-01-20 08:31:45 +0000 |
|---|---|---|
| committer | Reid Spencer <rspencer@reidspencer.com> | 2007-01-20 08:31:45 +0000 |
| commit | 6df4c4576f3bc47a547d400effd4c59653ffe592 (patch) | |
| tree | f9da36c09b467d7ae91f80747cbeb20ef95baab3 | |
| parent | 30fe5268171a612ef489347e3a03c2ce75c7e4d9 (diff) | |
Add a test case for sext bug that Leo found.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33393 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | test/Integer/2007-01-19-TruncSext.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/Integer/2007-01-19-TruncSext.ll b/test/Integer/2007-01-19-TruncSext.ll new file mode 100644 index 0000000000..7b89033cc2 --- /dev/null +++ b/test/Integer/2007-01-19-TruncSext.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as %s -o - | llvm-dis > %t1.ll +; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll +; RUN: diff %t1.ll %t2.ll +; RUN: llvm-as < %s | lli --force-interpreter=true | grep -- '-255' + +%ARRAY = global [ 20 x i17 ] zeroinitializer +%FORMAT = constant [ 4 x i8 ] c"%d\0A\00" + +declare i32 %printf(i8* %format, ...) + +define void %multiply(i32 %index, i32 %X, i32 %Y) { + %Z = mul i32 %X, %Y + %P = getelementptr [20 x i17]* %ARRAY, i32 0, i32 %index + %Result = trunc i32 %Z to i17 + store i17 %Result, i17* %P + ret void +} + +define i32 %main(i32 %argc, i8** %argc) { + %i = bitcast i32 0 to i32 + call void %multiply(i32 %i, i32 -1, i32 255) + %P = getelementptr [20 x i17]* %ARRAY, i32 0, i32 0 + %X = load i17* %P + %result = sext i17 %X to i32 + %fmt = getelementptr [4 x i8]* %FORMAT, i32 0, i32 0 + call i32 (i8*,...)* %printf(i8* %fmt, i32 %result) + ret i32 %result +} + |