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aarch64: Add an extra comment to arm_sve.h

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I've had a couple of conversations now in which the shortness
of arm_sve.h was causing confusion, with people thinking that
the types and intrinsics were missing.  It seems worth adding
a comment to explain what's going on.

2020-04-24  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/aarch64/arm_sve.h: Add a comment.
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Richard Sandiford 2020-04-24 11:58:19 +01:00
parent cbd2a10dd9
commit c508fd07d7
2 changed files with 9 additions and 0 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
2020-04-24 Richard Sandiford <richard.sandiford@arm.com>
* config/aarch64/arm_sve.h: Add a comment.
2020-04-24 Haijian Zhang <z.zhanghaijian@huawei.com>
PR rtl-optimization/94708

5
gcc/config/aarch64/arm_sve.h
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@ -32,6 +32,11 @@ typedef __fp16 float16_t;
typedef float float32_t;
typedef double float64_t;
/* NOTE: This implementation of arm_sve.h is intentionally short. It does
not define the SVE types and intrinsic functions directly in C and C++
code, but instead uses the following pragma to tell GCC to insert the
necessary type and function definitions itself. The net effect is the
same, and the file is a complete implementation of arm_sve.h. */
#pragma GCC aarch64 "arm_sve.h"
#endif