succ-block-with-self-edge.ll
1.49 KB
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; RUN: opt -S -hotcoldsplit -hotcoldsplit-threshold=0 < %s | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.14.0"
; CHECK-LABEL: define {{.*}}@exit_block_with_same_incoming_vals
; CHECK: call {{.*}}@exit_block_with_same_incoming_vals.cold.1(
; CHECK-NOT: br i1 undef
; CHECK: phi i32 [ 0, %entry ], [ %p.ce.reload, %codeRepl ]
define void @exit_block_with_same_incoming_vals(i32 %cond) {
entry:
%tobool = icmp eq i32 %cond, 0
br i1 %tobool, label %if.end, label %coldbb
coldbb:
call void @sink()
call void @sideeffect()
br i1 undef, label %if.end, label %coldbb2
coldbb2:
%p2 = phi i32 [0, %coldbb], [1, %coldbb2]
br i1 undef, label %if.end, label %coldbb2
if.end:
%p = phi i32 [0, %entry], [1, %coldbb], [1, %coldbb2]
ret void
}
; CHECK-LABEL: define {{.*}}@exit_block_with_distinct_incoming_vals
; CHECK: call {{.*}}@exit_block_with_distinct_incoming_vals.cold.1(
; CHECK-NOT: br i1 undef
; CHECK: phi i32 [ 0, %entry ], [ %p.ce.reload, %codeRepl ]
define void @exit_block_with_distinct_incoming_vals(i32 %cond) {
entry:
%tobool = icmp eq i32 %cond, 0
br i1 %tobool, label %if.end, label %coldbb
coldbb:
call void @sink()
call void @sideeffect()
br i1 undef, label %if.end, label %coldbb2
coldbb2:
%p2 = phi i32 [0, %coldbb], [1, %coldbb2]
br i1 undef, label %if.end, label %coldbb2
if.end:
%p = phi i32 [0, %entry], [1, %coldbb], [2, %coldbb2]
ret void
}
declare void @sink() cold
declare void @sideeffect()