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Diffstat (limited to 'test/Transforms/SimplifyLibCalls/FPuts.ll')
| -rw-r--r-- | test/Transforms/SimplifyLibCalls/FPuts.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyLibCalls/FPuts.ll b/test/Transforms/SimplifyLibCalls/FPuts.ll new file mode 100644 index 0000000..1f72ede --- /dev/null +++ b/test/Transforms/SimplifyLibCalls/FPuts.ll @@ -0,0 +1,29 @@ +; Test that the FPutsOptimizer works correctly +; RUN: opt < %s -simplify-libcalls -S | \ +; RUN: not grep {call.*fputs} + +; This transformation requires the pointer size, as it assumes that size_t is +; the size of a pointer. +target datalayout = "-p:64:64:64" + + %struct._IO_FILE = type { i32, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, %struct._IO_marker*, %struct._IO_FILE*, i32, i32, i32, i16, i8, [1 x i8], i8*, i64, i8*, i8*, i32, [52 x i8] } + %struct._IO_marker = type { %struct._IO_marker*, %struct._IO_FILE*, i32 } +@stdout = external global %struct._IO_FILE* ; <%struct._IO_FILE**> [#uses=1] +@empty = constant [1 x i8] zeroinitializer ; <[1 x i8]*> [#uses=1] +@len1 = constant [2 x i8] c"A\00" ; <[2 x i8]*> [#uses=1] +@long = constant [7 x i8] c"hello\0A\00" ; <[7 x i8]*> [#uses=1] + +declare i32 @fputs(i8*, %struct._IO_FILE*) + +define i32 @main() { +entry: + %out = load %struct._IO_FILE** @stdout ; <%struct._IO_FILE*> [#uses=3] + %s1 = getelementptr [1 x i8]* @empty, i32 0, i32 0 ; <i8*> [#uses=1] + %s2 = getelementptr [2 x i8]* @len1, i32 0, i32 0 ; <i8*> [#uses=1] + %s3 = getelementptr [7 x i8]* @long, i32 0, i32 0 ; <i8*> [#uses=1] + %a = call i32 @fputs( i8* %s1, %struct._IO_FILE* %out ) ; <i32> [#uses=0] + %b = call i32 @fputs( i8* %s2, %struct._IO_FILE* %out ) ; <i32> [#uses=0] + %c = call i32 @fputs( i8* %s3, %struct._IO_FILE* %out ) ; <i32> [#uses=0] + ret i32 0 +} + |
