device: 0.799 register: 0.752 ppc: 0.725 architecture: 0.712 assembly: 0.702 performance: 0.663 network: 0.623 vnc: 0.598 kernel: 0.591 PID: 0.530 arm: 0.522 socket: 0.510 risc-v: 0.477 x86: 0.465 files: 0.464 TCG: 0.453 semantic: 0.449 peripherals: 0.448 i386: 0.440 hypervisor: 0.430 permissions: 0.428 graphic: 0.427 boot: 0.402 debug: 0.387 VMM: 0.382 virtual: 0.267 KVM: 0.247 mistranslation: 0.236 user-level: 0.223 Sparc: fdtox/fqtox instructions incorrectly select destination register Description of problem: This bug report is mostly for informational purposes as I will be posting a fix for the bug. The `fdtox` and `fqtox` instructions incorrectly select the destination register when the destination register is higher than `f31`. Steps to reproduce: 1. Install Sparc cross compiler `gcc-12-sparc64-linux-gnu`(in Debian) 2. Compile the test program using `sparc64-linux-gnu-gcc-12 -m64 -o test_program -static test_program.c` 3. Run the test program using `qemu-sparc64-static ./test_program` 4. Expected output is 60. Prints 0 instead. Additional information: Test program to test the issue: ```c #include int main(int argc, char** argv) { long long truncated = 0; __asm__("fdtox %0,%%f32\n\t" :: "f"(60.0)); __asm__("fmovd %%f32,%0\n\t" : "=f"(truncated)); printf("%lld\n", truncated); return 0; } ``` The issue is caused by the commit 0bba7572d4. Where certain changes were made in the way destination registers are selected(moving the DFPREG/QFPREG to decodetree).