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remove rex-prefixed recipes for e9 and eb jumps

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while not incorrect, the prefix has no additional semantics on these
  instructions other than taking an extra byte for the jump
This commit is contained in:
iximeow
2019-05-17 12:28:46 -07:00
committed by Benjamin Bouvier
parent f427a2b923
commit 6059936113
4 changed files with 22 additions and 20 deletions
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4
cranelift/filetests/filetests/isa/x86/legalize-br-icmp.clif
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@@ -17,7 +17,7 @@ ebb1:
; nextln: [RexOp1pu_id#b8] v1 = iconst.i64 0
; nextln: [RexOp1icscc#8039] v2 = icmp eq v0, v1
; nextln: [RexOp1t8jccb#75] brnz v2, ebb1
; nextln: [RexOp1jmpb#eb] jump ebb1
; nextln: [Op1jmpb#eb] jump ebb1
; nextln:
; nextln: ebb1:
; nextln: [Op1ret#c3] return
@@ -39,7 +39,7 @@ ebb1(v2: i64):
; nextln: [RexOp1pu_id#b8] v1 = iconst.i64 0
; nextln: [RexOp1icscc#8039] v3 = icmp eq v0, v1
; nextln: [RexOp1t8jccb#75] brnz v3, ebb1(v0)
; nextln: [RexOp1jmpb#eb] jump ebb1(v0)
; nextln: [Op1jmpb#eb] jump ebb1(v0)
; nextln:
; nextln: ebb1(v2: i64):
; nextln: [Op1ret#c3] return

2
cranelift/filetests/filetests/isa/x86/relax_branch.clif
View File

@@ -103,7 +103,7 @@ function u0:2691(i32 [%rdi], i32 [%rsi], i64 vmctx [%r14]) -> i64 uext [%rax] ba
[Op1umr#89,%rdx] v100 = copy v79
@00a4 [RexOp1rmov#89] regmove v100, %rdx -> %rdi
@00a4 [RexOp1rmov#89] regmove v99, %rcx -> %rsi
@00a4 [RexOp1jmpd#e9] jump ebb3(v100, v99); bin: 40 e9 ffffff2c
@00a4 [Op1jmpd#e9] jump ebb3(v100, v99); bin: e9 ffffff2d
ebb9:
@00a7 [-] fallthrough ebb4