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| author | Jan Beulich <jbeulich@suse.com> | 2023-02-22 14:12:52 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2023-02-22 14:12:52 +0100 |
| commit | ba25141c1e520f20c210b42fec19823667e83b8e (patch) | |
| tree | 0f01f7ebcfaa1f276c6ff8f594bab0a3958125d4 /gas | |
| parent | ad2f44368092a4f111034fc1efc09cfa0de394a5 (diff) | |
| download | gdb-ba25141c1e520f20c210b42fec19823667e83b8e.zip gdb-ba25141c1e520f20c210b42fec19823667e83b8e.tar.gz gdb-ba25141c1e520f20c210b42fec19823667e83b8e.tar.bz2 | |
x86-64: LAR and LSL don't need REX.W
Just like we suppress emitting REX.W for e.g. MOV from/to segment
register, there's also no need for it for LAR and LSL - these can only
ever return 32-bit values and hence always zero-extend their results
anyway.
While there also drop the redundant Word from the first operand of
the second template each - this is already implied by Reg16.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/testsuite/gas/i386/x86_64-intel.d | 24 | ||||
| -rw-r--r-- | gas/testsuite/gas/i386/x86_64.d | 24 |
2 files changed, 24 insertions, 24 deletions
diff --git a/gas/testsuite/gas/i386/x86_64-intel.d b/gas/testsuite/gas/i386/x86_64-intel.d index a2d5668..bd99ce0 100644 --- a/gas/testsuite/gas/i386/x86_64-intel.d +++ b/gas/testsuite/gas/i386/x86_64-intel.d @@ -260,34 +260,34 @@ Disassembly of section .text: [ ]*[a-f0-9]+: 48 89 0c 25 00 00 00 00 mov QWORD PTR (ds:)?0x0,rcx [ ]*[a-f0-9]+: 66 0f 02 d2 lar dx,dx [ ]*[a-f0-9]+: 0f 02 d2 lar edx,edx -[ ]*[a-f0-9]+: 48 0f 02 d2 lar rdx,rdx [ ]*[a-f0-9]+: 0f 02 d2 lar edx,edx -[ ]*[a-f0-9]+: 48 0f 02 d2 lar rdx,rdx +[ ]*[a-f0-9]+: 0f 02 d2 lar edx,edx +[ ]*[a-f0-9]+: 0f 02 d2 lar edx,edx [ ]*[a-f0-9]+: 66 0f 02 12 lar dx,WORD PTR \[rdx\] [ ]*[a-f0-9]+: 0f 02 12 lar edx,WORD PTR \[rdx\] -[ ]*[a-f0-9]+: 48 0f 02 12 lar rdx,WORD PTR \[rdx\] +[ ]*[a-f0-9]+: 0f 02 12 lar edx,WORD PTR \[rdx\] [ ]*[a-f0-9]+: 66 0f 03 d2 lsl dx,dx [ ]*[a-f0-9]+: 0f 03 d2 lsl edx,edx -[ ]*[a-f0-9]+: 48 0f 03 d2 lsl rdx,rdx [ ]*[a-f0-9]+: 0f 03 d2 lsl edx,edx -[ ]*[a-f0-9]+: 48 0f 03 d2 lsl rdx,rdx +[ ]*[a-f0-9]+: 0f 03 d2 lsl edx,edx +[ ]*[a-f0-9]+: 0f 03 d2 lsl edx,edx [ ]*[a-f0-9]+: 66 0f 03 12 lsl dx,WORD PTR \[rdx\] [ ]*[a-f0-9]+: 0f 03 12 lsl edx,WORD PTR \[rdx\] -[ ]*[a-f0-9]+: 48 0f 03 12 lsl rdx,WORD PTR \[rdx\] +[ ]*[a-f0-9]+: 0f 03 12 lsl edx,WORD PTR \[rdx\] [ ]*[a-f0-9]+: 66 0f 02 d2 lar dx,dx [ ]*[a-f0-9]+: 0f 02 d2 lar edx,edx -[ ]*[a-f0-9]+: 48 0f 02 d2 lar rdx,rdx [ ]*[a-f0-9]+: 0f 02 d2 lar edx,edx -[ ]*[a-f0-9]+: 48 0f 02 d2 lar rdx,rdx +[ ]*[a-f0-9]+: 0f 02 d2 lar edx,edx +[ ]*[a-f0-9]+: 0f 02 d2 lar edx,edx [ ]*[a-f0-9]+: 66 0f 02 12 lar dx,WORD PTR \[rdx\] [ ]*[a-f0-9]+: 0f 02 12 lar edx,WORD PTR \[rdx\] -[ ]*[a-f0-9]+: 48 0f 02 12 lar rdx,WORD PTR \[rdx\] +[ ]*[a-f0-9]+: 0f 02 12 lar edx,WORD PTR \[rdx\] [ ]*[a-f0-9]+: 66 0f 03 d2 lsl dx,dx [ ]*[a-f0-9]+: 0f 03 d2 lsl edx,edx -[ ]*[a-f0-9]+: 48 0f 03 d2 lsl rdx,rdx [ ]*[a-f0-9]+: 0f 03 d2 lsl edx,edx -[ ]*[a-f0-9]+: 48 0f 03 d2 lsl rdx,rdx +[ ]*[a-f0-9]+: 0f 03 d2 lsl edx,edx +[ ]*[a-f0-9]+: 0f 03 d2 lsl edx,edx [ ]*[a-f0-9]+: 66 0f 03 12 lsl dx,WORD PTR \[rdx\] [ ]*[a-f0-9]+: 0f 03 12 lsl edx,WORD PTR \[rdx\] -[ ]*[a-f0-9]+: 48 0f 03 12 lsl rdx,WORD PTR \[rdx\] +[ ]*[a-f0-9]+: 0f 03 12 lsl edx,WORD PTR \[rdx\] #pass diff --git a/gas/testsuite/gas/i386/x86_64.d b/gas/testsuite/gas/i386/x86_64.d index 3bd2c26..8897bb3 100644 --- a/gas/testsuite/gas/i386/x86_64.d +++ b/gas/testsuite/gas/i386/x86_64.d @@ -260,34 +260,34 @@ Disassembly of section .text: [ ]*[a-f0-9]+: 48 89 0c 25 00 00 00 00 mov %rcx,0x0 [ ]*[a-f0-9]+: 66 0f 02 d2 lar %dx,%dx [ ]*[a-f0-9]+: 0f 02 d2 lar %edx,%edx -[ ]*[a-f0-9]+: 48 0f 02 d2 lar %rdx,%rdx [ ]*[a-f0-9]+: 0f 02 d2 lar %edx,%edx -[ ]*[a-f0-9]+: 48 0f 02 d2 lar %rdx,%rdx +[ ]*[a-f0-9]+: 0f 02 d2 lar %edx,%edx +[ ]*[a-f0-9]+: 0f 02 d2 lar %edx,%edx [ ]*[a-f0-9]+: 66 0f 02 12 lar \(%rdx\),%dx [ ]*[a-f0-9]+: 0f 02 12 lar \(%rdx\),%edx -[ ]*[a-f0-9]+: 48 0f 02 12 lar \(%rdx\),%rdx +[ ]*[a-f0-9]+: 0f 02 12 lar \(%rdx\),%edx [ ]*[a-f0-9]+: 66 0f 03 d2 lsl %dx,%dx [ ]*[a-f0-9]+: 0f 03 d2 lsl %edx,%edx -[ ]*[a-f0-9]+: 48 0f 03 d2 lsl %rdx,%rdx [ ]*[a-f0-9]+: 0f 03 d2 lsl %edx,%edx -[ ]*[a-f0-9]+: 48 0f 03 d2 lsl %rdx,%rdx +[ ]*[a-f0-9]+: 0f 03 d2 lsl %edx,%edx +[ ]*[a-f0-9]+: 0f 03 d2 lsl %edx,%edx [ ]*[a-f0-9]+: 66 0f 03 12 lsl \(%rdx\),%dx [ ]*[a-f0-9]+: 0f 03 12 lsl \(%rdx\),%edx -[ ]*[a-f0-9]+: 48 0f 03 12 lsl \(%rdx\),%rdx +[ ]*[a-f0-9]+: 0f 03 12 lsl \(%rdx\),%edx [ ]*[a-f0-9]+: 66 0f 02 d2 lar %dx,%dx [ ]*[a-f0-9]+: 0f 02 d2 lar %edx,%edx -[ ]*[a-f0-9]+: 48 0f 02 d2 lar %rdx,%rdx [ ]*[a-f0-9]+: 0f 02 d2 lar %edx,%edx -[ ]*[a-f0-9]+: 48 0f 02 d2 lar %rdx,%rdx +[ ]*[a-f0-9]+: 0f 02 d2 lar %edx,%edx +[ ]*[a-f0-9]+: 0f 02 d2 lar %edx,%edx [ ]*[a-f0-9]+: 66 0f 02 12 lar \(%rdx\),%dx [ ]*[a-f0-9]+: 0f 02 12 lar \(%rdx\),%edx -[ ]*[a-f0-9]+: 48 0f 02 12 lar \(%rdx\),%rdx +[ ]*[a-f0-9]+: 0f 02 12 lar \(%rdx\),%edx [ ]*[a-f0-9]+: 66 0f 03 d2 lsl %dx,%dx [ ]*[a-f0-9]+: 0f 03 d2 lsl %edx,%edx -[ ]*[a-f0-9]+: 48 0f 03 d2 lsl %rdx,%rdx [ ]*[a-f0-9]+: 0f 03 d2 lsl %edx,%edx -[ ]*[a-f0-9]+: 48 0f 03 d2 lsl %rdx,%rdx +[ ]*[a-f0-9]+: 0f 03 d2 lsl %edx,%edx +[ ]*[a-f0-9]+: 0f 03 d2 lsl %edx,%edx [ ]*[a-f0-9]+: 66 0f 03 12 lsl \(%rdx\),%dx [ ]*[a-f0-9]+: 0f 03 12 lsl \(%rdx\),%edx -[ ]*[a-f0-9]+: 48 0f 03 12 lsl \(%rdx\),%rdx +[ ]*[a-f0-9]+: 0f 03 12 lsl \(%rdx\),%edx #pass |