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Diffstat (limited to 'test/Transforms/InstCombine/fprintf-1.ll')
-rw-r--r-- | test/Transforms/InstCombine/fprintf-1.ll | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/fprintf-1.ll b/test/Transforms/InstCombine/fprintf-1.ll new file mode 100644 index 0000000000..97cd7708f9 --- /dev/null +++ b/test/Transforms/InstCombine/fprintf-1.ll @@ -0,0 +1,79 @@ +; Test that the fprintf library call simplifier works correctly. +; +; RUN: opt < %s -instcombine -S | FileCheck %s +; RUN: opt < %s -mtriple xcore-xmos-elf -instcombine -S | FileCheck %s -check-prefix=IPRINTF + +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" + +%FILE = type { } + +@hello_world = constant [13 x i8] c"hello world\0A\00" +@percent_c = constant [3 x i8] c"%c\00" +@percent_d = constant [3 x i8] c"%d\00" +@percent_f = constant [3 x i8] c"%f\00" +@percent_s = constant [3 x i8] c"%s\00" + +declare i32 @fprintf(%FILE*, i8*, ...) + +; Check fprintf(fp, "foo") -> fwrite("foo", 3, 1, fp). + +define void @test_simplify1(%FILE* %fp) { +; CHECK: @test_simplify1 + %fmt = getelementptr [13 x i8]* @hello_world, i32 0, i32 0 + call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* %fmt) +; CHECK-NEXT: call i32 @fwrite(i8* getelementptr inbounds ([13 x i8]* @hello_world, i32 0, i32 0), i32 12, i32 1, %FILE* %fp) + ret void +; CHECK-NEXT: ret void +} + +; Check fprintf(fp, "%c", chr) -> fputc(chr, fp). + +define void @test_simplify2(%FILE* %fp) { +; CHECK: @test_simplify2 + %fmt = getelementptr [3 x i8]* @percent_c, i32 0, i32 0 + call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* %fmt, i8 104) +; CHECK-NEXT: call i32 @fputc(i32 104, %FILE* %fp) + ret void +; CHECK-NEXT: ret void +} + +; Check fprintf(fp, "%s", str) -> fputs(str, fp). + +define void @test_simplify3(%FILE* %fp) { +; CHECK: @test_simplify3 + %fmt = getelementptr [3 x i8]* @percent_s, i32 0, i32 0 + %str = getelementptr [13 x i8]* @hello_world, i32 0, i32 0 + call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* %fmt, i8* %str) +; CHECK-NEXT: call i32 @fputs(i8* getelementptr inbounds ([13 x i8]* @hello_world, i32 0, i32 0), %FILE* %fp) + ret void +; CHECK-NEXT: ret void +} + +; Check fprintf(fp, fmt, ...) -> fiprintf(fp, fmt, ...) if no floating point. + +define void @test_simplify4(%FILE* %fp) { +; CHECK-IPRINTF: @test_simplify4 + %fmt = getelementptr [3 x i8]* @percent_d, i32 0, i32 0 + call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* %fmt, i32 187) +; CHECK-NEXT-IPRINTF: call i32 (%FILE*, i8*, ...)* @fiprintf(%FILE* %fp, i8* getelementptr inbounds ([3 x i8]* @percent_d, i32 0, i32 0), i32 187) + ret void +; CHECK-NEXT-IPRINTF: ret void +} + +define void @test_no_simplify1(%FILE* %fp) { +; CHECK-IPRINTF: @test_no_simplify1 + %fmt = getelementptr [3 x i8]* @percent_f, i32 0, i32 0 + call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* %fmt, double 1.87) +; CHECK-NEXT-IPRINTF: call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* getelementptr inbounds ([3 x i8]* @percent_f, i32 0, i32 0), double 1.870000e+00) + ret void +; CHECK-NEXT-IPRINTF: ret void +} + +define void @test_no_simplify2(%FILE* %fp, double %d) { +; CHECK: @test_no_simplify2 + %fmt = getelementptr [3 x i8]* @percent_f, i32 0, i32 0 + call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* %fmt, double %d) +; CHECK-NEXT: call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* getelementptr inbounds ([3 x i8]* @percent_f, i32 0, i32 0), double %d) + ret void +; CHECK-NEXT: ret void +} |