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llvm-mirror/test/Transforms/InstCombine/fprintf-1.ll
Reid Kleckner 66e4d3276a [IR] Straighten out bundle overload of IRBuilder::CreateCall
IRBuilder has two ways of putting bundle operands on calls: the default
operand bundle, and an overload of CreateCall that takes an operand
bundle list.

Previously, this overload used a default argument of None. This made it
impossible to distinguish between the case were the caller doesn't care
about bundles, and the case where the caller explicitly wants no
bundles. We behaved as if they wanted the latter behavior rather than
the former, which led to problems with simplifylibcalls and WinEH.

This change fixes it by making the parameter non-optional, so we can
distinguish these two cases.

llvm-svn: 261258
2016-02-18 20:57:41 +00:00

99 lines
4.1 KiB
LLVM

; 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=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"
%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-LABEL: @test_simplify1(
%fmt = getelementptr [13 x i8], [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], [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-LABEL: @test_simplify2(
%fmt = getelementptr [3 x i8], [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).
; NOTE: The fputs simplifier simplifies this further to fwrite.
define void @test_simplify3(%FILE* %fp) {
; CHECK-LABEL: @test_simplify3(
%fmt = getelementptr [3 x i8], [3 x i8]* @percent_s, i32 0, i32 0
%str = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* %fmt, i8* %str)
; CHECK-NEXT: call i32 @fwrite(i8* getelementptr inbounds ([13 x i8], [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-LABEL: @test_simplify4(
%fmt = getelementptr [3 x i8], [3 x i8]* @percent_d, i32 0, i32 0
call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* %fmt, i32 187)
; CHECK-IPRINTF-NEXT: call i32 (%FILE*, i8*, ...) @fiprintf(%FILE* %fp, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @percent_d, i32 0, i32 0), i32 187)
ret void
; CHECK-IPRINTF-NEXT: ret void
}
define void @test_simplify5(%FILE* %fp) {
; CHECK-LABEL: @test_simplify5(
%fmt = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* %fmt) [ "deopt"() ]
; CHECK-NEXT: call i32 @fwrite(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0), i32 12, i32 1, %FILE* %fp) [ "deopt"() ]
ret void
; CHECK-NEXT: ret void
}
define void @test_no_simplify1(%FILE* %fp) {
; CHECK-IPRINTF-LABEL: @test_no_simplify1(
%fmt = getelementptr [3 x i8], [3 x i8]* @percent_f, i32 0, i32 0
call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* %fmt, double 1.87)
; CHECK-IPRINTF-NEXT: call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @percent_f, i32 0, i32 0), double 1.870000e+00)
ret void
; CHECK-IPRINTF-NEXT: ret void
}
define void @test_no_simplify2(%FILE* %fp, double %d) {
; CHECK-LABEL: @test_no_simplify2(
%fmt = getelementptr [3 x i8], [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], [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], [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], [13 x i8]* @hello_world, i32 0, i32 0))
ret i32 %1
; CHECK-NEXT: ret i32 %1
}