c88beb4112
This include 2 fixes:
1. Disallow 'f' for softfloat.
2. Allow 'r' for softfloat.
Currently, 'f' is accpeted by clang, then LLVM meets an internal error.
'r' is rejected by LLVM by: couldn't allocate input reg for constraint
'r'.
Fixes: #64241, #63632
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Co-authored-by: Fangrui Song <i@maskray.me>
12 lines
364 B
C
12 lines
364 B
C
// RUN: %clang_cc1 -emit-llvm -triple mips -target-feature +soft-float %s -o - | FileCheck %s --check-prefix=SOFT_FLOAT
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// SOFT_FLOAT: call void asm sideeffect "", "r,~{$1}"(float %1)
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void read_float(float *p) {
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__asm__("" ::"r"(*p));
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}
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// SOFT_FLOAT: call void asm sideeffect "", "r,~{$1}"(double %1)
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void read_double(double *p) {
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__asm__("" :: "r"(*p));
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}
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