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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>
10 lines
318 B
C
10 lines
318 B
C
// RUN: %clang_cc1 -triple mips64 -fsyntax-only -verify %s
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// RUN: %clang_cc1 -triple mips64 -target-feature +soft-float -fsyntax-only -verify=softfloat %s
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// expected-no-diagnostics
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void test_f(float p) {
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float result = p;
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__asm__("" :: "f"(result)); // softfloat-error{{invalid input constraint 'f' in asm}}
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}
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