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1; Test that the fprintf library call simplifier works correctly.2;3; RUN: opt < %s -passes=instcombine -S | FileCheck %s4; RUN: opt < %s -mtriple xcore-xmos-elf -passes=instcombine -S | FileCheck %s -check-prefix=CHECK-IPRINTF5 6target 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"7 8%FILE = type { }9 10@hello_world = constant [13 x i8] c"hello world\0A\00"11@percent_c = constant [3 x i8] c"%c\00"12@percent_d = constant [3 x i8] c"%d\00"13@percent_f = constant [3 x i8] c"%f\00"14@percent_s = constant [3 x i8] c"%s\00"15@percent_m = constant [3 x i8] c"%m\00"16 17declare i32 @fprintf(ptr, ptr, ...)18 19; Check fprintf(fp, "foo") -> fwrite("foo", 3, 1, fp).20 21define void @test_simplify1(ptr %fp) {22; CHECK-LABEL: @test_simplify1(23 call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr @hello_world)24; CHECK-NEXT: call i32 @fwrite(ptr nonnull @hello_world, i32 12, i32 1, ptr %fp)25 ret void26; CHECK-NEXT: ret void27}28 29; Check fprintf(fp, "%c", chr) -> fputc(chr, fp).30 31define void @test_simplify2(ptr %fp) {32; CHECK-LABEL: @test_simplify2(33 call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr @percent_c, i8 104)34; CHECK-NEXT: call i32 @fputc(i32 104, ptr %fp)35 ret void36; CHECK-NEXT: ret void37}38 39; Check fprintf(fp, "%s", str) -> fputs(str, fp).40; NOTE: The fputs simplifier simplifies this further to fwrite.41 42define void @test_simplify3(ptr %fp) {43; CHECK-LABEL: @test_simplify3(44 call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr @percent_s, ptr @hello_world)45; CHECK-NEXT: call i32 @fwrite(ptr nonnull @hello_world, i32 12, i32 1, ptr %fp)46 ret void47; CHECK-NEXT: ret void48}49 50; Check fprintf(fp, fmt, ...) -> fiprintf(fp, fmt, ...) if no floating point.51 52define void @test_simplify4(ptr %fp) {53; CHECK-IPRINTF-LABEL: @test_simplify4(54 call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr @percent_d, i32 187)55; CHECK-IPRINTF-NEXT: call i32 (ptr, ptr, ...) @fiprintf(ptr %fp, ptr nonnull @percent_d, i32 187)56 ret void57; CHECK-IPRINTF-NEXT: ret void58}59 60define void @test_simplify5(ptr %fp) {61; CHECK-LABEL: @test_simplify5(62 call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr @hello_world) [ "deopt"() ]63; CHECK-NEXT: call i32 @fwrite(ptr nonnull @hello_world, i32 12, i32 1, ptr %fp) [ "deopt"() ]64 ret void65; CHECK-NEXT: ret void66}67 68define void @test_no_simplify1(ptr %fp) {69; CHECK-IPRINTF-LABEL: @test_no_simplify1(70 call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr @percent_f, double 1.87)71; CHECK-IPRINTF-NEXT: call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr nonnull @percent_f, double 1.870000e+00)72 ret void73; CHECK-IPRINTF-NEXT: ret void74}75 76define void @test_no_simplify2(ptr %fp, double %d) {77; CHECK-LABEL: @test_no_simplify2(78 call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr @percent_f, double %d)79; CHECK-NEXT: call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr nonnull @percent_f, double %d)80 ret void81; CHECK-NEXT: ret void82}83 84define i32 @test_no_simplify3(ptr %fp) {85; CHECK-LABEL: @test_no_simplify3(86 %1 = call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr @hello_world)87; CHECK-NEXT: call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr nonnull @hello_world)88 ret i32 %189; CHECK-NEXT: ret i32 %190}91 92; Verify that a call with a format string containing just the %m directive93; and no arguments is not simplified.94 95define void @test_no_simplify4(ptr %fp) {96; CHECK-LABEL: @test_no_simplify4(97 call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr @percent_m)98; CHECK-NEXT: call i32 (ptr, ptr, ...) @fprintf(ptr %fp, ptr nonnull @percent_m)99 ret void100; CHECK-NEXT: ret void101}102