Files
clang-p2996/llvm/test/Transforms/NewGVN/MemdepMiscompile.ll
Bjorn Pettersson bcdcf984cc [test][NewGVN] Use '-passes=newgvn' instead of '-basic-aa -newgvn'
This updates NewGVN test cases that were running
  "opt -basic-aa -newgvn ..."
to run
  "opt -passes=newgvn ..."
instead.

The pipeline will be more similar to what we used to have with
legacy PM by doing it this way. The compatility mode that we've
been using for awhile during transition from legacy PM to new PM,
i.e. using the legacy syntax together with new PM, has resulted in
a pipeline such as
  -passes='function(require<basic-aa>),function(newgvn)'
but running the analysis in a separate function pass manager seem
overly complicated for these tests.

Another difference is that we will get the default aa-pipeline instead
of only running basic-aa. That might be a bit questioned (given that
the tests originally specified basic-aa). The output is however
identival for all the test cases modified here regardless of using
basic-aa or the default aa-pipeline.

This is also another small step towards removal of the support for
using the legacy PM syntax in opt.

Differential Revision: https://reviews.llvm.org/D118340
2022-01-28 13:58:22 +01:00

55 lines
1.7 KiB
LLVM

; RUN: opt < %s -passes=newgvn -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-macosx10.7.0"
; rdar://12801584
; Value of %shouldExit can be changed by RunInMode.
; Make sure we do not replace load %shouldExit in while.cond.backedge
; with a phi node where the value from while.body is 0.
define i32 @test() nounwind ssp {
entry:
; CHECK: test()
; CHECK: while.body:
; CHECK: call void @RunInMode
; CHECK: br i1 %tobool, label %while.cond.backedge, label %if.then
; CHECK: while.cond.backedge:
; CHECK: load i32, i32* %shouldExit
; CHECK: br i1 %cmp, label %while.body
%shouldExit = alloca i32, align 4
%tasksIdle = alloca i32, align 4
store i32 0, i32* %shouldExit, align 4
store i32 0, i32* %tasksIdle, align 4
call void @CTestInitialize(i32* %tasksIdle) nounwind
%0 = load i32, i32* %shouldExit, align 4
%cmp1 = icmp eq i32 %0, 0
br i1 %cmp1, label %while.body.lr.ph, label %while.end
while.body.lr.ph:
br label %while.body
while.body:
call void @RunInMode(i32 100) nounwind
%1 = load i32, i32* %tasksIdle, align 4
%tobool = icmp eq i32 %1, 0
br i1 %tobool, label %while.cond.backedge, label %if.then
if.then:
store i32 0, i32* %tasksIdle, align 4
call void @TimerCreate(i32* %shouldExit) nounwind
br label %while.cond.backedge
while.cond.backedge:
%2 = load i32, i32* %shouldExit, align 4
%cmp = icmp eq i32 %2, 0
br i1 %cmp, label %while.body, label %while.cond.while.end_crit_edge
while.cond.while.end_crit_edge:
br label %while.end
while.end:
ret i32 0
}
declare void @CTestInitialize(i32*)
declare void @RunInMode(i32)
declare void @TimerCreate(i32*)