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7dcf1654f8
Based ontop of D104598, which is a NFCI-ish refactoring. Here, a restriction, that only empty blocks can be merged, is lifted. Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D104597
32 lines
870 B
LLVM
32 lines
870 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=armv7-apple-ios | FileCheck %s
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define void @foo(i32 %X, i32 %Y) {
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; CHECK-LABEL: foo:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: cmp r1, #0
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; CHECK-NEXT: beq LBB0_2
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; CHECK-NEXT: @ %bb.1: @ %entry
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; CHECK-NEXT: cmp r0, #4
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; CHECK-NEXT: bxhs lr
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; CHECK-NEXT: LBB0_2: @ %cond_true
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; CHECK-NEXT: push {lr}
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; CHECK-NEXT: bl _bar
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; CHECK-NEXT: pop {lr}
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; CHECK-NEXT: bx lr
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entry:
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%tmp1 = icmp ult i32 %X, 4 ; <i1> [#uses=1]
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%tmp4 = icmp eq i32 %Y, 0 ; <i1> [#uses=1]
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%tmp7 = or i1 %tmp4, %tmp1 ; <i1> [#uses=1]
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br i1 %tmp7, label %cond_true, label %UnifiedReturnBlock
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cond_true: ; preds = %entry
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%tmp10 = call i32 (...) @bar( ) ; <i32> [#uses=0]
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ret void
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UnifiedReturnBlock: ; preds = %entry
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ret void
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}
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declare i32 @bar(...)
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