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[CodeGen] add tests for abs builtins; NFC 

llvm-svn: 332988
This commit is contained in:
Sanjay Patel 2018-05-22 15:11:59 +00:00
parent 6dfcc78364
commit b6e5d4ead1
1 changed files with 29 additions and 0 deletions
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29
clang/test/CodeGen/builtin-abs.c Normal file
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// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
int absi(int x) {
// CHECK-LABEL: @absi(
// CHECK: [[NEG:%.*]] = sub i32 0, [[X:%.*]]
// CHECK: [[CMP:%.*]] = icmp sge i32 [[X]], 0
// CHECK: [[SEL:%.*]] = select i1 [[CMP]], i32 [[X]], i32 [[NEG]]
//
return __builtin_abs(x);
}
long absl(long x) {
// CHECK-LABEL: @absl(
// CHECK: [[NEG:%.*]] = sub i64 0, [[X:%.*]]
// CHECK: [[CMP:%.*]] = icmp sge i64 [[X]], 0
// CHECK: [[SEL:%.*]] = select i1 [[CMP]], i64 [[X]], i64 [[NEG]]
//
return __builtin_labs(x);
}
long long absll(long long x) {
// CHECK-LABEL: @absll(
// CHECK: [[NEG:%.*]] = sub i64 0, [[X:%.*]]
// CHECK: [[CMP:%.*]] = icmp sge i64 [[X]], 0
// CHECK: [[SEL:%.*]] = select i1 [[CMP]], i64 [[X]], i64 [[NEG]]
//
return __builtin_llabs(x);
}