1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; Test that the puts library call simplifier works correctly. 3; 4; RUN: opt < %s -instcombine -S | FileCheck %s 5 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@empty = constant [1 x i8] zeroinitializer 9 10declare i32 @puts(i8*) 11 12; Check puts("") -> putchar('\n'). 13 14define void @test_simplify1() { 15; CHECK-LABEL: @test_simplify1( 16; CHECK-NEXT: [[PUTCHAR:%.*]] = call i32 @putchar(i32 10) 17; CHECK-NEXT: ret void 18; 19 %str = getelementptr [1 x i8], [1 x i8]* @empty, i32 0, i32 0 20 call i32 @puts(i8* %str) 21 ret void 22} 23 24; Don't simplify if the return value is used. 25 26define i32 @test_no_simplify1() { 27; CHECK-LABEL: @test_no_simplify1( 28; CHECK-NEXT: [[RET:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([1 x i8], [1 x i8]* @empty, i32 0, i32 0)) 29; CHECK-NEXT: ret i32 [[RET]] 30; 31 %str = getelementptr [1 x i8], [1 x i8]* @empty, i32 0, i32 0 32 %ret = call i32 @puts(i8* %str) 33 ret i32 %ret 34} 35