| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| |
| declare i8* @memrchr(i8*, i32, i32) |
| |
| define i8* @test1(i8* %str, i32 %c, i32 %n) { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: [[RET:%.*]] = call i8* @memrchr(i8* [[STR:%.*]], i32 [[C:%.*]], i32 [[N:%.*]]) |
| ; CHECK-NEXT: ret i8* [[RET]] |
| ; |
| |
| %ret = call i8* @memrchr(i8* %str, i32 %c, i32 %n) |
| ret i8* %ret |
| } |
| |
| define i8* @test2(i8* %str, i32 %c, i32 %n) { |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: [[RET:%.*]] = call i8* @memrchr(i8* nonnull [[STR:%.*]], i32 [[C:%.*]], i32 [[N:%.*]]) |
| ; CHECK-NEXT: ret i8* [[RET]] |
| ; |
| |
| %ret = call i8* @memrchr(i8* nonnull %str, i32 %c, i32 %n) |
| ret i8* %ret |
| } |
| |
| define i8* @test3(i8* %str, i32 %c) { |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: [[RET:%.*]] = call i8* @memrchr(i8* [[STR:%.*]], i32 [[C:%.*]], i32 5) |
| ; CHECK-NEXT: ret i8* [[RET]] |
| ; |
| |
| %ret = call i8* @memrchr(i8* %str, i32 %c, i32 5) |
| ret i8* %ret |
| } |
| |
| define i8* @test4(i8* %str, i32 %c) "null-pointer-is-valid"="true" { |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: [[RET:%.*]] = call i8* @memrchr(i8* [[STR:%.*]], i32 [[C:%.*]], i32 5) |
| ; CHECK-NEXT: ret i8* [[RET]] |
| ; |
| |
| %ret = call i8* @memrchr(i8* %str, i32 %c, i32 5) |
| ret i8* %ret |
| } |
| |
| define i8* @test5(i8* %str, i32 %c) { |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: [[RET:%.*]] = call i8* @memrchr(i8* [[STR:%.*]], i32 [[C:%.*]], i32 0) |
| ; CHECK-NEXT: ret i8* [[RET]] |
| ; |
| |
| %ret = call i8* @memrchr(i8* %str, i32 %c, i32 0) |
| ret i8* %ret |
| } |