; 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
+; RUN: opt < %s -mtriple xcore-xmos-elf -instcombine -S | FileCheck %s -check-prefix=CHECK-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"
; Check fprintf(fp, "foo") -> fwrite("foo", 3, 1, fp).
define void @test_simplify1(%FILE* %fp) {
-; CHECK: @test_simplify1
+; CHECK-LABEL: @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)
; Check fprintf(fp, "%c", chr) -> fputc(chr, fp).
define void @test_simplify2(%FILE* %fp) {
-; CHECK: @test_simplify2
+; CHECK-LABEL: @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)
}
; Check fprintf(fp, "%s", str) -> fputs(str, fp).
+; NOTE: The fputs simplifier simplifies this further to fwrite.
define void @test_simplify3(%FILE* %fp) {
-; CHECK: @test_simplify3
+; CHECK-LABEL: @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)
+; 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, fmt, ...) -> fiprintf(fp, fmt, ...) if no floating point.
define void @test_simplify4(%FILE* %fp) {
-; CHECK-IPRINTF: @test_simplify4
+; CHECK-IPRINTF-LABEL: @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)
+; CHECK-IPRINTF-NEXT: 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
+; CHECK-IPRINTF-NEXT: ret void
}
define void @test_no_simplify1(%FILE* %fp) {
-; CHECK-IPRINTF: @test_no_simplify1
+; CHECK-IPRINTF-LABEL: @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)
+; CHECK-IPRINTF-NEXT: 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
+; CHECK-IPRINTF-NEXT: ret void
}
define void @test_no_simplify2(%FILE* %fp, double %d) {
-; CHECK: @test_no_simplify2
+; CHECK-LABEL: @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
}
+
+define i32 @test_no_simplify3(%FILE* %fp) {
+; CHECK-LABEL: @test_no_simplify3(
+ %fmt = getelementptr [13 x i8]* @hello_world, i32 0, i32 0
+ %1 = call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* %fmt)
+; CHECK-NEXT: call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* getelementptr inbounds ([13 x i8]* @hello_world, i32 0, i32 0))
+ ret i32 %1
+; CHECK-NEXT: ret i32 %1
+}