122b0220fd
The data layout strings do not have any effect on llc tests and will become misleadingly out of date as we continue to update the canonical data layout, so remove them from the tests. Differential Revision: https://reviews.llvm.org/D105842
84 lines
2.5 KiB
YAML
84 lines
2.5 KiB
YAML
# RUN: llc -mtriple=wasm32-unknown-unknown -run-pass wasm-fix-irreducible-control-flow %s -o - | FileCheck %s
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# This tests if we correctly create at most 2 routing blocks per entry block,
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# and also whether those routing blocks are generated in the correct place. If
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# one of the predecessor is the layout predecessor of an entry, a routing block
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# for the entry should be generated right after the layout predecessor.
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--- |
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target triple = "wasm32-unknown-unknown"
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define void @test0() {
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pred0:
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ret void
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pred1:
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ret void
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entry0:
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ret void
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entry1:
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ret void
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}
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...
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---
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# CHECK-LABEL: test0
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name: test0
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liveins:
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- { reg: '$arguments' }
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body: |
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bb.0.pred0:
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successors: %bb.1, %bb.2
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liveins: $arguments
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%0:i32 = CONST_I32 100, implicit-def $arguments
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BR_IF %bb.2, %0:i32, implicit-def $arguments
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; CHECK: bb.0.pred0:
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; CHECK: BR_IF %bb.2, %0, implicit-def $arguments
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bb.1.pred1:
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; predecessors: %bb.1
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successors: %bb.2, %bb.3
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BR_IF %bb.3, %0:i32, implicit-def $arguments
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; CHECK: bb.1.pred1:
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; CHECK: BR_IF %bb.7, %0, implicit-def $arguments
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; This falls through to bb.2, so we don't need an additional BR here
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; CHECK-NOT: BR
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; Routing block for entry0, when predecessor is outside the loop
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; This routing block is shared between the two predecessors: pred0 and pred1.
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; CHECK: bb.2:
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; CHECK: %1:i32 = CONST_I32 0, implicit-def $arguments
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; CHECK: BR %bb.6, implicit-def $arguments
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bb.2.entry0:
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; predecessors: %bb.0, %bb.1, %bb.1
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successors: %bb.3
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BR %bb.3, implicit-def $arguments
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; CHECK: bb.3.entry0:
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; CHECK: BR %bb.4, implicit-def $arguments
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; Routing block for entry1, when predecessor is inside the loop
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; CHECK: bb.4:
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; CHECK: %1:i32 = CONST_I32 1, implicit-def $arguments
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; CHECK: BR %bb.6, implicit-def $arguments
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bb.3.entry1:
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; predecessors: %bb.1, %bb.2
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successors: %bb.2
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BR %bb.2, implicit-def $arguments
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; CHECK: bb.5.entry1:
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; CHECK: BR %bb.8, implicit-def $arguments
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; Dispatch block
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; CHECK: bb.6:
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; CHECK: BR_TABLE_I32 %1, %bb.3, %bb.5, %bb.5, implicit-def $arguments
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; Routing block for entry1, when predecessor is outside the loop
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; CHECK: bb.7:
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; CHECK: %1:i32 = CONST_I32 1, implicit-def $arguments
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; CHECK: BR %bb.6, implicit-def $arguments
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; Routing block for entry0, when predecessor is inside the loop
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; CHECK: bb.8:
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; CHECK: %1:i32 = CONST_I32 0, implicit-def $arguments
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; CHECK: BR %bb.6, implicit-def $arguments
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