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llvm-project/clang/test/Frontend/fixed_point_to_bool.c

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[Fixed Point Arithmetic] Fixed Point to Boolean Cast This patch is a part of https://reviews.llvm.org/D48456 in an attempt to split the casting logic up into smaller patches. This contains the code for casting from fixed point types to boolean types. Differential Revision: https://reviews.llvm.org/D53308 llvm-svn: 345063
2018-10-24 01:55:35 +08:00
// RUN: %clang_cc1 -ffixed-point -S -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -ffixed-point -S -emit-llvm %s -o - -fpadding-on-unsigned-fixed-point | FileCheck %s
_Bool global_b = 1.0k; // @global_b = {{*.}}global i8 1, align 1
_Bool global_b2 = 0.0k; // @global_b2 = {{*.}}global i8 0, align 1
void func() {
_Accum a = 0.5k;
unsigned _Accum ua = 0.5uk;
_Bool b;
// CHECK: store i8 1, i8* %b, align 1
// CHECK-NEXT: store i8 0, i8* %b, align 1
// CHECK: store i8 1, i8* %b, align 1
// CHECK-NEXT: store i8 0, i8* %b, align 1
b = 0.5k;
b = 0.0k;
b = 0.5uk;
b = 0.0uk;
// CHECK-NEXT: store i8 1, i8* %b, align 1
// CHECK-NEXT: store i8 0, i8* %b, align 1
// CHECK-NEXT: store i8 1, i8* %b, align 1
// CHECK-NEXT: store i8 0, i8* %b, align 1
b = (_Bool)0.5r;
b = (_Bool)0.0r;
b = (_Bool)0.5ur;
b = (_Bool)0.0ur;
[Fixed Point Arithmetic] Refactor fixed point casts Summary: - Added names for some emitted values (such as "tobool" for the result of a cast to boolean). - Replaced explicit IRBuilder request for doing sext/zext/trunc by using CreateIntCast instead. - Simplify code for emitting satuation into one if-statement for clamping to max, and one if-statement for clamping to min. Reviewers: leonardchan, ebevhan Reviewed By: leonardchan Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D53707 llvm-svn: 345398
2018-10-27 00:12:12 +08:00
// CHECK-NEXT: [[ACCUM:%[0-9a-z]+]] = load i32, i32* %a, align 4
// CHECK-NEXT: [[NOTZERO:%[0-9a-z]+]] = icmp ne i32 [[ACCUM]], 0
// CHECK-NEXT: [[FROMBOOL:%[0-9a-z]+]] = zext i1 [[NOTZERO]] to i8
// CHECK-NEXT: store i8 [[FROMBOOL]], i8* %b, align 1
[Fixed Point Arithmetic] Fixed Point to Boolean Cast This patch is a part of https://reviews.llvm.org/D48456 in an attempt to split the casting logic up into smaller patches. This contains the code for casting from fixed point types to boolean types. Differential Revision: https://reviews.llvm.org/D53308 llvm-svn: 345063
2018-10-24 01:55:35 +08:00
b = a;
[Fixed Point Arithmetic] Refactor fixed point casts Summary: - Added names for some emitted values (such as "tobool" for the result of a cast to boolean). - Replaced explicit IRBuilder request for doing sext/zext/trunc by using CreateIntCast instead. - Simplify code for emitting satuation into one if-statement for clamping to max, and one if-statement for clamping to min. Reviewers: leonardchan, ebevhan Reviewed By: leonardchan Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D53707 llvm-svn: 345398
2018-10-27 00:12:12 +08:00
// CHECK-NEXT: [[ACCUM:%[0-9a-z]+]] = load i32, i32* %ua, align 4
// CHECK-NEXT: [[NOTZERO:%[0-9a-z]+]] = icmp ne i32 [[ACCUM]], 0
// CHECK-NEXT: [[FROMBOOL:%[0-9a-z]+]] = zext i1 [[NOTZERO]] to i8
// CHECK-NEXT: store i8 [[FROMBOOL]], i8* %b, align 1
[Fixed Point Arithmetic] Fixed Point to Boolean Cast This patch is a part of https://reviews.llvm.org/D48456 in an attempt to split the casting logic up into smaller patches. This contains the code for casting from fixed point types to boolean types. Differential Revision: https://reviews.llvm.org/D53308 llvm-svn: 345063
2018-10-24 01:55:35 +08:00
b = ua;
[Fixed Point Arithmetic] Refactor fixed point casts Summary: - Added names for some emitted values (such as "tobool" for the result of a cast to boolean). - Replaced explicit IRBuilder request for doing sext/zext/trunc by using CreateIntCast instead. - Simplify code for emitting satuation into one if-statement for clamping to max, and one if-statement for clamping to min. Reviewers: leonardchan, ebevhan Reviewed By: leonardchan Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D53707 llvm-svn: 345398
2018-10-27 00:12:12 +08:00
// CHECK-NEXT: [[ACCUM:%[0-9a-z]+]] = load i32, i32* %a, align 4
// CHECK-NEXT: [[NOTZERO:%[0-9a-z]+]] = icmp ne i32 [[ACCUM]], 0
[Fixed Point Arithmetic] Fixed Point to Boolean Cast This patch is a part of https://reviews.llvm.org/D48456 in an attempt to split the casting logic up into smaller patches. This contains the code for casting from fixed point types to boolean types. Differential Revision: https://reviews.llvm.org/D53308 llvm-svn: 345063
2018-10-24 01:55:35 +08:00
// CHECK-NEXT: br i1 [[NOTZERO]], label %if.then, label %if.end
if (a) {
}
[Fixed Point Arithmetic] Refactor fixed point casts Summary: - Added names for some emitted values (such as "tobool" for the result of a cast to boolean). - Replaced explicit IRBuilder request for doing sext/zext/trunc by using CreateIntCast instead. - Simplify code for emitting satuation into one if-statement for clamping to max, and one if-statement for clamping to min. Reviewers: leonardchan, ebevhan Reviewed By: leonardchan Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D53707 llvm-svn: 345398
2018-10-27 00:12:12 +08:00
// CHECK: [[ACCUM:%[0-9a-z]+]] = load i32, i32* %ua, align 4
// CHECK-NEXT: [[NOTZERO:%[0-9a-z]+]] = icmp ne i32 [[ACCUM]], 0
[Fixed Point Arithmetic] Fixed Point to Boolean Cast This patch is a part of https://reviews.llvm.org/D48456 in an attempt to split the casting logic up into smaller patches. This contains the code for casting from fixed point types to boolean types. Differential Revision: https://reviews.llvm.org/D53308 llvm-svn: 345063
2018-10-24 01:55:35 +08:00
// CHECK-NEXT: br i1 [[NOTZERO]], label %if.then{{[0-9]+}}, label %if.end{{[0-9]+}}
if (ua) {
}
}