0d8b864829
instcombine will combine neg+icmp+select to llvm.abs.*. Let's just emit llvm.abs.* in the first place.
27 lines
626 B
C
27 lines
626 B
C
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
|
|
|
|
int absi(int x) {
|
|
// CHECK-LABEL: @absi(
|
|
// CHECK: [[ABS:%.*]] = call i32 @llvm.abs.i32(i32 %0, i1 true)
|
|
// CHECK-NEXT: ret i32 [[ABS]]
|
|
//
|
|
return __builtin_abs(x);
|
|
}
|
|
|
|
long absl(long x) {
|
|
// CHECK-LABEL: @absl(
|
|
// CHECK: [[ABS:%.*]] = call i64 @llvm.abs.i64(i64 %0, i1 true)
|
|
// CHECK-NEXT: ret i64 [[ABS]]
|
|
//
|
|
return __builtin_labs(x);
|
|
}
|
|
|
|
long long absll(long long x) {
|
|
// CHECK-LABEL: @absll(
|
|
// CHECK: [[ABS:%.*]] = call i64 @llvm.abs.i64(i64 %0, i1 true)
|
|
// CHECK-NEXT: ret i64 [[ABS]]
|
|
//
|
|
return __builtin_llabs(x);
|
|
}
|
|
|