T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[codegen] reintroduce support for carry and borrow instructions in RI… (#1005)

Browse Source 
Reintroduce support for iadd carry variants and isub borrow variants for
RISC ISAs which had been removed in
https://github.com/CraneStation/cranelift/pull/961 and
https://github.com/CraneStation/cranelift/pull/962 because of the lack
of a proper flags register in RISC architectures.
This commit is contained in:
Ujjwal Sharma
2019-09-13 20:57:50 +05:30
committed by Benjamin Bouvier
parent cadd0ac655
commit 3418fb6e18
17 changed files with 326 additions and 85 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
cranelift/filetests/filetests/isa/x86/binary32.clif
View File

@@ -471,19 +471,19 @@ ebb0:
; Carry Addition
; asm: addl %esi, %ecx
[-,%rcx,%rflags] v701, v702 = iadd_cout v1, v2 ; bin: 01 f1
[-,%rcx,%rflags] v701, v702 = iadd_ifcout v1, v2 ; bin: 01 f1
; asm: adcl %esi, %ecx
[-,%rcx] v703 = iadd_cin v1, v2, v702 ; bin: 11 f1
[-,%rcx] v703 = iadd_ifcin v1, v2, v702 ; bin: 11 f1
; asm: adcl %esi, %ecx
[-,%rcx,%rflags] v704, v705 = iadd_carry v1, v2, v702 ; bin: 11 f1
[-,%rcx,%rflags] v704, v705 = iadd_ifcarry v1, v2, v702 ; bin: 11 f1
; Borrow Subtraction
; asm: subl %esi, %ecx
[-,%rcx,%rflags] v706, v707 = isub_bout v1, v2 ; bin: 29 f1
[-,%rcx,%rflags] v706, v707 = isub_ifbout v1, v2 ; bin: 29 f1
; asm: sbbl %esi, %ecx
[-,%rcx] v708 = isub_bin v1, v2, v707 ; bin: 19 f1
[-,%rcx] v708 = isub_ifbin v1, v2, v707 ; bin: 19 f1
; asm: sbbl %esi, %ecx
[-,%rcx,%rflags] v709, v710 = isub_borrow v1, v2, v707 ; bin: 19 f1
[-,%rcx,%rflags] v709, v710 = isub_ifborrow v1, v2, v707 ; bin: 19 f1
; asm: testl %ecx, %ecx
; asm: je ebb1