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cranelift: Remove brz and brnz (#5630)

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Remove the brz and brnz instructions, as their behavior is now redundant with brif.
This commit is contained in:
Trevor Elliott
2023-01-30 12:34:56 -08:00
committed by GitHub
parent 77cf547f41
commit a5698cedf8
247 changed files with 2947 additions and 3754 deletions
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11
cranelift/docs/testing.md
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@@ -169,12 +169,12 @@ command:
function %nonsense(i32, i32) -> f32 {
; check: digraph %nonsense {
; regex: I=\binst\d+\b
; check: label="{block0 | <$(BRZ=$I)>brz block2 | <$(JUMP=$I)>jump block1}"]
; check: label="{block0 | <$(BRIF=$I)>brif v1, block1(v2), block2 }"]
block0(v0: i32, v1: i32):
brz v1, block2 ; unordered: block0:$BRZ -> block2
v2 = iconst.i32 0
jump block1(v2) ; unordered: block0:$JUMP -> block1
brif v1, block1(v2), block2 ; unordered: block0:$BRIF -> block1
; unordered: block0:$BRIF -> block2
block1(v5: i32):
return v0
@@ -195,10 +195,9 @@ Compute the dominator tree of each function and validate it against the
function %test(i32) {
block0(v0: i32):
jump block1 ; dominates: block1
jump block1 ; dominates: block1
block1:
brz v0, block3 ; dominates: block3
jump block2 ; dominates: block2
brif v0, block2, block3 ; dominates: block2, block3
block2:
jump block3
block3: