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[v2,6/6] tests/tcg/arm: Manually bit-cast half-precision numbers

Message ID 20240627-tcg-v2-6-1690a813348e@daynix.com (mailing list archive)
State New
Headers show
Series tests/tcg/aarch64: Fix inline assemblies for clang | expand

Commit Message

Akihiko Odaki June 27, 2024, 1:58 p.m. UTC 
clang version 18.1.6 does not allow specifying an integer as the value
of a single-precision register. Manually bit-cast into float with vmov
first.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
 tests/tcg/arm/fcvt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/tests/tcg/arm/fcvt.c b/tests/tcg/arm/fcvt.c
index 157790e67961..14c9bb669c91 100644
--- a/tests/tcg/arm/fcvt.c
+++ b/tests/tcg/arm/fcvt.c
@@ -355,7 +355,9 @@  static void convert_half_to_single(void)
 
         print_half_number(i, input);
 #if defined(__arm__)
-        asm("vcvtb.f32.f16 %0, %1" : "=w" (output) : "x" ((uint32_t)input));
+        float tmp;
+        asm("vmov %0, %1" : "=w" (tmp) : "r" (input));
+        asm("vcvtb.f32.f16 %0, %1" : "=w" (output) : "x" (tmp));
 #else
         asm("fcvt %s0, %h1" : "=w" (output) : "w" (input));
 #endif