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authorChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
commit3e4c5a6261770bced301b5e74233e7866166ea5b (patch)
tree9379fddaba693ef8a045da06efee8529baa5f6f4 /gitlab/issues_text/target_missing/host_missing/accel_missing/1788
parente5634e2806195bee44407853c4bf8776f7abfa4f (diff)
downloadqemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.tar.gz
qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.zip
clean up repository
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-Floating point rounding fails on mps3-an547 amd cortex-m55 while using LLVM-embedded-toolchain-for-Arm and Picolibic.
-Description of problem:
-Rounding of long double gives unexpected result. Simple code as example:
-```
-#include <math.h>
-int main(void)
-{
-  long double value = -8.5L;
-  long rounded_value = lrintl(value);
-  if( -8 == rounded_value )
-  {
-    return 0;
-  }
-  return 1;
-}
-```
-Steps to reproduce:
-1. Checkout project: [LLVM-embedded-toolchain-for-ARM](https://github.com/ARM-software/LLVM-embedded-toolchain-for-Arm)
-2. Configure it with option -DLLVM_TOOLCHAIN_LIBRARY_VARIANTS=armv8.1m.main_hard_nofp_mve 
-3. Build project
-4. Run Picolbic tests with ninja picolibc_armv8.1m.main_hard_nofp_mve-test
-
-As a result long_double test fails with incorrect rounding.
-Last qemu version which successfully execute mentioned test is: qemu 7.0.0 downloaded via [qemu-7.0.0](https://download.qemu.org/qemu-7.0.0.tar.bz2). 
-Issue is present since qemu version 7.1.
-Additional information:
-As a result long_double test fails with incorrect rounding.
-Last qemu version which successfully execute mentioned test is: qemu 7.0.0 downloaded via [qemu-7.0.0](https://download.qemu.org/qemu-7.0.0.tar.bz2). 
-Issue is present since qemu version 7.1.