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TheRock/compiler/amd-llvm/clang/test/CodeGen/builtins-bitint.c
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 4
// RUN: %clang_cc1 -triple arm-unknown-unknown -O0 -std=c23 -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECK-O0
// RUN: %clang_cc1 -triple arm-unknown-unknown -O1 -std=c23 -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECK-O1
// Verify that the result from the intrinsic call is zero extended to avoid that
// we get a negative result from popcountg/ctzg/clzg.
// CHECK-O0-LABEL: define dso_local arm_aapcscc i32 @test_popcountg_ubi1(
// CHECK-O0-SAME: ) #[[ATTR0:[0-9]+]] {
// CHECK-O0-NEXT: entry:
// CHECK-O0-NEXT: [[A:%.*]] = alloca i8, align 1
// CHECK-O0-NEXT: store i8 1, ptr [[A]], align 1
// CHECK-O0-NEXT: [[TMP0:%.*]] = load i8, ptr [[A]], align 1
// CHECK-O0-NEXT: [[LOADEDV:%.*]] = icmp ne i8 [[TMP0]], 0
// CHECK-O0-NEXT: [[TMP1:%.*]] = call i1 @llvm.ctpop.i1(i1 [[LOADEDV]])
// CHECK-O0-NEXT: [[CAST:%.*]] = zext i1 [[TMP1]] to i32
// CHECK-O0-NEXT: ret i32 [[CAST]]
//
// CHECK-O1-LABEL: define dso_local arm_aapcscc noundef i32 @test_popcountg_ubi1(
// CHECK-O1-SAME: ) local_unnamed_addr #[[ATTR0:[0-9]+]] {
// CHECK-O1-NEXT: entry:
// CHECK-O1-NEXT: ret i32 1
//
int test_popcountg_ubi1() {
unsigned _BitInt(1) a = 1uwb;
return __builtin_popcountg(a);
}
// CHECK-O0-LABEL: define dso_local arm_aapcscc i32 @test_popcountg_ubi2(
// CHECK-O0-SAME: ) #[[ATTR0]] {
// CHECK-O0-NEXT: entry:
// CHECK-O0-NEXT: [[A:%.*]] = alloca i8, align 1
// CHECK-O0-NEXT: store i8 3, ptr [[A]], align 1
// CHECK-O0-NEXT: [[TMP0:%.*]] = load i8, ptr [[A]], align 1
// CHECK-O0-NEXT: [[LOADEDV:%.*]] = trunc i8 [[TMP0]] to i2
// CHECK-O0-NEXT: [[TMP1:%.*]] = call i2 @llvm.ctpop.i2(i2 [[LOADEDV]])
// CHECK-O0-NEXT: [[CAST:%.*]] = zext i2 [[TMP1]] to i32
// CHECK-O0-NEXT: ret i32 [[CAST]]
//
// CHECK-O1-LABEL: define dso_local arm_aapcscc noundef i32 @test_popcountg_ubi2(
// CHECK-O1-SAME: ) local_unnamed_addr #[[ATTR0]] {
// CHECK-O1-NEXT: entry:
// CHECK-O1-NEXT: ret i32 2
//
int test_popcountg_ubi2() {
unsigned _BitInt(2) a = 3uwb;
return __builtin_popcountg(a);
}
// CHECK-O0-LABEL: define dso_local arm_aapcscc i32 @test_ctzg_ubi1(
// CHECK-O0-SAME: ) #[[ATTR0]] {
// CHECK-O0-NEXT: entry:
// CHECK-O0-NEXT: [[A:%.*]] = alloca i8, align 1
// CHECK-O0-NEXT: store i8 0, ptr [[A]], align 1
// CHECK-O0-NEXT: [[TMP0:%.*]] = load i8, ptr [[A]], align 1
// CHECK-O0-NEXT: [[LOADEDV:%.*]] = icmp ne i8 [[TMP0]], 0
// CHECK-O0-NEXT: [[TMP1:%.*]] = call i1 @llvm.cttz.i1(i1 [[LOADEDV]], i1 false)
// CHECK-O0-NEXT: [[CAST:%.*]] = zext i1 [[TMP1]] to i32
// CHECK-O0-NEXT: ret i32 [[CAST]]
//
// CHECK-O1-LABEL: define dso_local arm_aapcscc noundef i32 @test_ctzg_ubi1(
// CHECK-O1-SAME: ) local_unnamed_addr #[[ATTR0]] {
// CHECK-O1-NEXT: entry:
// CHECK-O1-NEXT: ret i32 1
//
int test_ctzg_ubi1() {
unsigned _BitInt(1) a = 0uwb;
return __builtin_ctzg(a);
}
// CHECK-O0-LABEL: define dso_local arm_aapcscc i32 @test_ctzg_ubi2(
// CHECK-O0-SAME: ) #[[ATTR0]] {
// CHECK-O0-NEXT: entry:
// CHECK-O0-NEXT: [[A:%.*]] = alloca i8, align 1
// CHECK-O0-NEXT: store i8 0, ptr [[A]], align 1
// CHECK-O0-NEXT: [[TMP0:%.*]] = load i8, ptr [[A]], align 1
// CHECK-O0-NEXT: [[LOADEDV:%.*]] = trunc i8 [[TMP0]] to i2
// CHECK-O0-NEXT: [[TMP1:%.*]] = call i2 @llvm.cttz.i2(i2 [[LOADEDV]], i1 false)
// CHECK-O0-NEXT: [[CAST:%.*]] = zext i2 [[TMP1]] to i32
// CHECK-O0-NEXT: ret i32 [[CAST]]
//
// CHECK-O1-LABEL: define dso_local arm_aapcscc noundef i32 @test_ctzg_ubi2(
// CHECK-O1-SAME: ) local_unnamed_addr #[[ATTR0]] {
// CHECK-O1-NEXT: entry:
// CHECK-O1-NEXT: ret i32 2
//
int test_ctzg_ubi2() {
unsigned _BitInt(2) a = 0uwb;
return __builtin_ctzg(a);
}
// CHECK-O0-LABEL: define dso_local arm_aapcscc i32 @test_clzg_ubi1(
// CHECK-O0-SAME: ) #[[ATTR0]] {
// CHECK-O0-NEXT: entry:
// CHECK-O0-NEXT: [[A:%.*]] = alloca i8, align 1
// CHECK-O0-NEXT: store i8 0, ptr [[A]], align 1
// CHECK-O0-NEXT: [[TMP0:%.*]] = load i8, ptr [[A]], align 1
// CHECK-O0-NEXT: [[LOADEDV:%.*]] = icmp ne i8 [[TMP0]], 0
// CHECK-O0-NEXT: [[TMP1:%.*]] = call i1 @llvm.ctlz.i1(i1 [[LOADEDV]], i1 false)
// CHECK-O0-NEXT: [[CAST:%.*]] = zext i1 [[TMP1]] to i32
// CHECK-O0-NEXT: ret i32 [[CAST]]
//
// CHECK-O1-LABEL: define dso_local arm_aapcscc noundef i32 @test_clzg_ubi1(
// CHECK-O1-SAME: ) local_unnamed_addr #[[ATTR0]] {
// CHECK-O1-NEXT: entry:
// CHECK-O1-NEXT: ret i32 1
//
int test_clzg_ubi1() {
unsigned _BitInt(1) a = 0uwb;
return __builtin_clzg(a);
}
// CHECK-O0-LABEL: define dso_local arm_aapcscc i32 @test_clzg_ubi2(
// CHECK-O0-SAME: ) #[[ATTR0]] {
// CHECK-O0-NEXT: entry:
// CHECK-O0-NEXT: [[A:%.*]] = alloca i8, align 1
// CHECK-O0-NEXT: store i8 0, ptr [[A]], align 1
// CHECK-O0-NEXT: [[TMP0:%.*]] = load i8, ptr [[A]], align 1
// CHECK-O0-NEXT: [[LOADEDV:%.*]] = trunc i8 [[TMP0]] to i2
// CHECK-O0-NEXT: [[TMP1:%.*]] = call i2 @llvm.ctlz.i2(i2 [[LOADEDV]], i1 false)
// CHECK-O0-NEXT: [[CAST:%.*]] = zext i2 [[TMP1]] to i32
// CHECK-O0-NEXT: ret i32 [[CAST]]
//
// CHECK-O1-LABEL: define dso_local arm_aapcscc noundef i32 @test_clzg_ubi2(
// CHECK-O1-SAME: ) local_unnamed_addr #[[ATTR0]] {
// CHECK-O1-NEXT: entry:
// CHECK-O1-NEXT: ret i32 2
//
int test_clzg_ubi2() {
unsigned _BitInt(2) a = 0uwb;
return __builtin_clzg(a);
}
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