forked from OSchip/llvm-project
64 lines
1.4 KiB
LLVM
64 lines
1.4 KiB
LLVM
; RUN: opt -correlated-propagation -S %s | FileCheck %s
|
|
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.10.0"
|
|
|
|
; Function Attrs: noreturn
|
|
declare void @check1(i1) #1
|
|
|
|
; Function Attrs: noreturn
|
|
declare void @check2(i1) #1
|
|
|
|
; Make sure we propagate the value of %tmp35 to the true/false cases
|
|
; CHECK-LABEL: @test1
|
|
; CHECK: call void @check1(i1 false)
|
|
; CHECK: call void @check2(i1 true)
|
|
define void @test1(i64 %tmp35) {
|
|
bb:
|
|
%tmp36 = icmp sgt i64 %tmp35, 0
|
|
br i1 %tmp36, label %bb_true, label %bb_false
|
|
|
|
bb_true:
|
|
%tmp47 = icmp slt i64 %tmp35, 0
|
|
tail call void @check1(i1 %tmp47) #4
|
|
unreachable
|
|
|
|
bb_false:
|
|
%tmp48 = icmp sle i64 %tmp35, 0
|
|
tail call void @check2(i1 %tmp48) #4
|
|
unreachable
|
|
}
|
|
|
|
; Function Attrs: noreturn
|
|
; This is the same as test1 but with a diamond to ensure we
|
|
; get %tmp36 from both true and false BBs.
|
|
; CHECK-LABEL: @test2
|
|
; CHECK: call void @check1(i1 false)
|
|
; CHECK: call void @check2(i1 true)
|
|
define void @test2(i64 %tmp35, i1 %inner_cmp) {
|
|
bb:
|
|
%tmp36 = icmp sgt i64 %tmp35, 0
|
|
br i1 %tmp36, label %bb_true, label %bb_false
|
|
|
|
bb_true:
|
|
br i1 %inner_cmp, label %inner_true, label %inner_false
|
|
|
|
inner_true:
|
|
br label %merge
|
|
|
|
inner_false:
|
|
br label %merge
|
|
|
|
merge:
|
|
%tmp47 = icmp slt i64 %tmp35, 0
|
|
tail call void @check1(i1 %tmp47) #0
|
|
unreachable
|
|
|
|
bb_false:
|
|
%tmp48 = icmp sle i64 %tmp35, 0
|
|
tail call void @check2(i1 %tmp48) #4
|
|
unreachable
|
|
}
|
|
|
|
attributes #4 = { noreturn }
|