mirror of
https://github.com/Gericom/teak-llvm.git
synced 2025-06-23 21:45:46 -04:00
34b5dbca0a
This commit fixes a bug in the handling of storage-only __fp16 vectors where clang didn't promote __fp16 vector operands to float vectors. Conceptually, it performs the following transformation on the AST in CreateBuiltinBinOp and CreateBuiltinUnaryOp: (Before) typedef __fp16 half4 __attribute__ ((vector_size (8))); typedef float float4 __attribute__ ((vector_size (16))); half4 hv0, hv1, hv2, hv3; hv0 = hv1 + hv2 + hv3; (After) float4 t0 = (float4)hv1 + (float4)hv2; float4 t1 = t0 + (float4)hv3; hv0 = (half4)t1; Note that this commit fixes the bug for targets that set HalfArgsAndReturns to true (ARM and ARM64). Targets using intrinsics such as llvm.convert.to.fp16 to handle __fp16 are still broken. rdar://problem/20625184 Differential Revision: https://reviews.llvm.org/D32520 llvm-svn: 314056
52 lines
2.0 KiB
C
52 lines
2.0 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify %s
|
|
|
|
typedef __fp16 half4 __attribute__ ((vector_size (8)));
|
|
typedef float float4 __attribute__ ((vector_size (16)));
|
|
typedef short short4 __attribute__ ((vector_size (8)));
|
|
typedef int int4 __attribute__ ((vector_size (16)));
|
|
|
|
half4 hv0, hv1;
|
|
float4 fv0, fv1;
|
|
short4 sv0;
|
|
int4 iv0;
|
|
|
|
void testFP16Vec(int c) {
|
|
hv0 = hv0 + hv1;
|
|
hv0 = hv0 - hv1;
|
|
hv0 = hv0 * hv1;
|
|
hv0 = hv0 / hv1;
|
|
hv0 = c ? hv0 : hv1;
|
|
hv0 += hv1;
|
|
hv0 -= hv1;
|
|
hv0 *= hv1;
|
|
hv0 /= hv1;
|
|
sv0 = hv0 == hv1;
|
|
sv0 = hv0 != hv1;
|
|
sv0 = hv0 < hv1;
|
|
sv0 = hv0 > hv1;
|
|
sv0 = hv0 <= hv1;
|
|
sv0 = hv0 >= hv1;
|
|
sv0 = hv0 || hv1; // expected-error{{logical expression with vector types 'half4' (vector of 4 '__fp16' values) and 'half4' is only supported in C++}}
|
|
sv0 = hv0 && hv1; // expected-error{{logical expression with vector types 'half4' (vector of 4 '__fp16' values) and 'half4' is only supported in C++}}
|
|
|
|
// Implicit conversion between half vectors and float vectors are not allowed.
|
|
hv0 = fv0; // expected-error{{assigning to}}
|
|
fv0 = hv0; // expected-error{{assigning to}}
|
|
hv0 = (half4)fv0; // expected-error{{invalid conversion between}}
|
|
fv0 = (float4)hv0; // expected-error{{invalid conversion between}}
|
|
hv0 = fv0 + fv1; // expected-error{{assigning to}}
|
|
fv0 = hv0 + hv1; // expected-error{{assigning to}}
|
|
hv0 = hv0 + fv1; // expected-error{{cannot convert between vector}}
|
|
hv0 = c ? hv0 : fv1; // expected-error{{cannot convert between vector}}
|
|
sv0 = hv0 == fv1; // expected-error{{cannot convert between vector}}
|
|
sv0 = hv0 < fv1; // expected-error{{cannot convert between vector}}
|
|
sv0 = hv0 || fv1; // expected-error{{cannot convert between vector}} expected-error{{invalid operands to binary expression}}
|
|
iv0 = hv0 == hv1; // expected-error{{assigning to}}
|
|
|
|
// FIXME: clang currently disallows using these operators on vectors, which is
|
|
// allowed by gcc.
|
|
sv0 = !hv0; // expected-error{{invalid argument type}}
|
|
hv0++; // expected-error{{cannot increment value of type}}
|
|
++hv0; // expected-error{{cannot increment value of type}}
|
|
}
|