mono/linux-packaging-mono
0
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Imported Upstream version 5.18.0.207

Browse Source 
Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2018-11-17 08:23:10 +00:00
parent 8e12397d70
commit eb85e2fc17
28480 changed files with 72 additions and 3866936 deletions
Download Patch File Download Diff File Expand all files Collapse all files

63
external/llvm/test/Transforms/IndVarSimplify/rewrite-loop-exit-value.ll vendored
View File

@ -1,63 +0,0 @@
; RUN: opt -indvars -instcombine -S < %s | FileCheck %s
;; Test that loop's exit value is rewritten to its initial
;; value from loop preheader
define i32 @test1(i32* %var) {
; CHECK-LABEL: @test1
entry:
%cond = icmp eq i32* %var, null
br label %header
header:
%phi_indvar = phi i32 [0, %entry], [%indvar, %loop]
br i1 %cond, label %loop, label %exit
loop:
%indvar = add i32 %phi_indvar, 1
br label %header
exit:
; CHECK: ret i32 0
ret i32 %phi_indvar
}
;; Test that we can not rewrite loop exit value if it's not
;; a phi node (%indvar is an add instruction in this test).
define i32 @test2(i32* %var) {
; CHECK-LABEL: @test2
entry:
%cond = icmp eq i32* %var, null
br label %header
header:
%phi_indvar = phi i32 [0, %entry], [%indvar, %header]
%indvar = add i32 %phi_indvar, 1
br i1 %cond, label %header, label %exit
exit:
; CHECK: ret i32 %indvar
ret i32 %indvar
}
;; Test that we can not rewrite loop exit value if the condition
;; is not in loop header.
define i32 @test3(i32* %var) {
; CHECK-LABEL: @test3
entry:
%cond1 = icmp eq i32* %var, null
br label %header
header:
%phi_indvar = phi i32 [0, %entry], [%indvar, %header], [%indvar, %body]
%indvar = add i32 %phi_indvar, 1
%cond2 = icmp eq i32 %indvar, 10
br i1 %cond2, label %header, label %body
body:
br i1 %cond1, label %header, label %exit
exit:
; CHECK: ret i32 %phi_indvar
ret i32 %phi_indvar
}