https://gcc.gnu.org/g:273f652fdf40e99151f047786f3ff8d53f1183bb
commit r16-9083-g273f652fdf40e99151f047786f3ff8d53f1183bb Author: Torbjörn SVENSSON <[email protected]> Date: Fri Apr 10 11:47:56 2026 +0200 doc: testsuite: Simplify implementation and document arm_mixed_fp [PR113276] The documentation should have been part of r16-8549-g3d30fc2f73ccc1. gcc/ChangeLog: PR testsuite/113276 * doc/sourcebuild.texi (arm_mixed_fp): Document. gcc/testsuite/ChangeLog: * lib/target-supports.exp (arm_mixed_fp): Simplify implementation. Signed-off-by: Torbjörn SVENSSON <[email protected]> Diff: --- gcc/doc/sourcebuild.texi | 5 +++++ gcc/testsuite/lib/target-supports.exp | 7 +++---- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi index 3bccb1384d9f..f11d6caae1f0 100644 --- a/gcc/doc/sourcebuild.texi +++ b/gcc/doc/sourcebuild.texi @@ -2351,6 +2351,11 @@ ARM target supporting @code{-mbranch-protection=standard}. @item arm_pacbti_hw Test system supports for executing non nop pacbti instructions. +@item arm_mixed_fp +On Arm targets, true when the target uses hardware instructions for +single-precision floatint-point values, but software emulation for +double-precision values. + @end table @subsubsection AArch64-specific attributes diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp index 55775d036cdc..8823df7a95d4 100644 --- a/gcc/testsuite/lib/target-supports.exp +++ b/gcc/testsuite/lib/target-supports.exp @@ -6383,10 +6383,9 @@ proc check_effective_target_arm_mixed_fp { } { } return [check_no_compiler_messages arm_mixed_fp assembly { - #ifndef __ARM_FP - # error __ARM_FP not defined - #elif ((__ARM_FP & 0xc) == 0xc) - # error __ARM_FP indicates that both single- and double-precision FP are supported + // Mixed FP means we have hw FP, but only for SFmode (ignores HFmode) + #if !defined(__ARM_FP) || ((__ARM_FP & 0xc) != 0x4) + #error Not mixed FP #endif int main (void) { return 0; } } "" ]
