| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -passes=instcombine -S | FileCheck %s |
| ; Verify that the non-default calling conv doesn't prevent the libcall simplification |
| |
| ; Layout specifies type of pointer which determines "size_t" |
| ; which is used to identify libcalls such as "size_t strlen(char*)". |
| |
| target datalayout = "p:32:32" |
| |
| @.str = private unnamed_addr constant [4 x i8] c"abc\00", align 1 |
| |
| define arm_aapcscc i32 @_abs(i32 %i) nounwind readnone { |
| ; CHECK-LABEL: @_abs( |
| ; CHECK-NEXT: [[CALL:%.*]] = call i32 @llvm.abs.i32(i32 [[I:%.*]], i1 true) |
| ; CHECK-NEXT: ret i32 [[CALL]] |
| ; |
| %call = tail call arm_aapcscc i32 @abs(i32 %i) nounwind readnone |
| ret i32 %call |
| } |
| |
| declare arm_aapcscc i32 @abs(i32) nounwind readnone |
| |
| define arm_aapcscc i32 @_labs(i32 %i) nounwind readnone { |
| ; CHECK-LABEL: @_labs( |
| ; CHECK-NEXT: [[CALL:%.*]] = call i32 @llvm.abs.i32(i32 [[I:%.*]], i1 true) |
| ; CHECK-NEXT: ret i32 [[CALL]] |
| ; |
| %call = tail call arm_aapcscc i32 @labs(i32 %i) nounwind readnone |
| ret i32 %call |
| } |
| |
| declare arm_aapcscc i32 @labs(i32) nounwind readnone |
| |
| define arm_aapcscc i32 @_strlen1() { |
| ; CHECK-LABEL: @_strlen1( |
| ; CHECK-NEXT: ret i32 3 |
| ; |
| %call = tail call arm_aapcscc i32 @strlen(ptr @.str) |
| ret i32 %call |
| } |
| |
| declare arm_aapcscc i32 @strlen(ptr) |
| |
| define arm_aapcscc zeroext i1 @_strlen2(ptr %str) { |
| ; CHECK-LABEL: @_strlen2( |
| ; CHECK-NEXT: [[CHAR0:%.*]] = load i8, ptr [[STR:%.*]], align 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ne i8 [[CHAR0]], 0 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %call = tail call arm_aapcscc i32 @strlen(ptr %str) |
| %cmp = icmp ne i32 %call, 0 |
| ret i1 %cmp |
| } |
| |