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llvm-project/llvm/test/CodeGen/X86/omit-label.ll

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Eliminate more uses of llvm-as and llvm-dis. llvm-svn: 81290
2009-09-09 07:54:48 +08:00
; RUN: llc < %s -asm-verbose=false -mtriple=x86_64-linux-gnu | FileCheck %s
If a MachineBasicBlock has multiple ways of reaching another block, allow it to have multiple CFG edges to that block. This is needed to allow MachineBasicBlock::isOnlyReachableByFallthrough to work correctly. This fixes PR4126. llvm-svn: 71018
2009-05-06 05:10:19 +08:00
; PR4126
Make tail merging handle blocks with repeated predecessors correctly, and remove RemoveDuplicateSuccessor, as it is no longer necessary, and because it breaks assumptions made in MachineBasicBlock::isOnlyReachableByFallthrough. Convert test/CodeGen/X86/omit-label.ll to FileCheck and add a testcase for PR4732. test/CodeGen/Thumb2/thumb2-ifcvt2.ll sees a diff with this commit due to it being bugpoint-reduced to the point where it doesn't matter what the condition for the branch is. Add some more interesting code to test/CodeGen/X86/2009-08-06-branchfolder-crash.ll, which is the testcase that originally motivated the RemoveDuplicateSuccessor code, to help verify that the original problem isn't being re-broken. llvm-svn: 79338
2009-08-18 23:18:18 +08:00
; PR4732
If a MachineBasicBlock has multiple ways of reaching another block, allow it to have multiple CFG edges to that block. This is needed to allow MachineBasicBlock::isOnlyReachableByFallthrough to work correctly. This fixes PR4126. llvm-svn: 71018
2009-05-06 05:10:19 +08:00
Make tail merging handle blocks with repeated predecessors correctly, and remove RemoveDuplicateSuccessor, as it is no longer necessary, and because it breaks assumptions made in MachineBasicBlock::isOnlyReachableByFallthrough. Convert test/CodeGen/X86/omit-label.ll to FileCheck and add a testcase for PR4732. test/CodeGen/Thumb2/thumb2-ifcvt2.ll sees a diff with this commit due to it being bugpoint-reduced to the point where it doesn't matter what the condition for the branch is. Add some more interesting code to test/CodeGen/X86/2009-08-06-branchfolder-crash.ll, which is the testcase that originally motivated the RemoveDuplicateSuccessor code, to help verify that the original problem isn't being re-broken. llvm-svn: 79338
2009-08-18 23:18:18 +08:00
; Don't omit these labels' definitions.
; CHECK: bux:
Make this test less sensitive to assembler differences. llvm-svn: 79348
2009-08-19 01:19:46 +08:00
; CHECK: LBB1_1:
If a MachineBasicBlock has multiple ways of reaching another block, allow it to have multiple CFG edges to that block. This is needed to allow MachineBasicBlock::isOnlyReachableByFallthrough to work correctly. This fixes PR4126. llvm-svn: 71018
2009-05-06 05:10:19 +08:00
define void @bux(i32 %p_53) nounwind optsize {
entry:
%0 = icmp eq i32 %p_53, 0 ; <i1> [#uses=1]
%1 = icmp sgt i32 %p_53, 0 ; <i1> [#uses=1]
%or.cond = and i1 %0, %1 ; <i1> [#uses=1]
br i1 %or.cond, label %bb.i, label %bb3
bb.i: ; preds = %entry
%2 = add i32 %p_53, 1 ; <i32> [#uses=1]
%3 = icmp slt i32 %2, 0 ; <i1> [#uses=0]
br label %bb3
bb3: ; preds = %bb.i, %entry
%4 = tail call i32 (...)* @baz(i32 0) nounwind ; <i32> [#uses=0]
ret void
}
declare i32 @baz(...)
Make tail merging handle blocks with repeated predecessors correctly, and remove RemoveDuplicateSuccessor, as it is no longer necessary, and because it breaks assumptions made in MachineBasicBlock::isOnlyReachableByFallthrough. Convert test/CodeGen/X86/omit-label.ll to FileCheck and add a testcase for PR4732. test/CodeGen/Thumb2/thumb2-ifcvt2.ll sees a diff with this commit due to it being bugpoint-reduced to the point where it doesn't matter what the condition for the branch is. Add some more interesting code to test/CodeGen/X86/2009-08-06-branchfolder-crash.ll, which is the testcase that originally motivated the RemoveDuplicateSuccessor code, to help verify that the original problem isn't being re-broken. llvm-svn: 79338
2009-08-18 23:18:18 +08:00
; Don't omit this label in the assembly output.
; CHECK: int321:
Make this test less sensitive to assembler differences. llvm-svn: 79348
2009-08-19 01:19:46 +08:00
; CHECK: LBB2_1
; CHECK: LBB2_1
; CHECK: LBB2_1:
Make tail merging handle blocks with repeated predecessors correctly, and remove RemoveDuplicateSuccessor, as it is no longer necessary, and because it breaks assumptions made in MachineBasicBlock::isOnlyReachableByFallthrough. Convert test/CodeGen/X86/omit-label.ll to FileCheck and add a testcase for PR4732. test/CodeGen/Thumb2/thumb2-ifcvt2.ll sees a diff with this commit due to it being bugpoint-reduced to the point where it doesn't matter what the condition for the branch is. Add some more interesting code to test/CodeGen/X86/2009-08-06-branchfolder-crash.ll, which is the testcase that originally motivated the RemoveDuplicateSuccessor code, to help verify that the original problem isn't being re-broken. llvm-svn: 79338
2009-08-18 23:18:18 +08:00
define void @int321(i8 signext %p_103, i32 %uint8p_104) nounwind readnone {
entry:
%tobool = icmp eq i8 %p_103, 0 ; <i1> [#uses=1]
%cmp.i = icmp sgt i8 %p_103, 0 ; <i1> [#uses=1]
%or.cond = and i1 %tobool, %cmp.i ; <i1> [#uses=1]
br i1 %or.cond, label %land.end.i, label %for.cond.preheader
land.end.i: ; preds = %entry
%conv3.i = sext i8 %p_103 to i32 ; <i32> [#uses=1]
%div.i = sdiv i32 1, %conv3.i ; <i32> [#uses=1]
%tobool.i = icmp eq i32 %div.i, -2147483647 ; <i1> [#uses=0]
br label %for.cond.preheader
for.cond.preheader: ; preds = %land.end.i, %entry
%cmp = icmp sgt i8 %p_103, 1 ; <i1> [#uses=1]
br i1 %cmp, label %for.end.split, label %for.cond
for.cond: ; preds = %for.cond.preheader, %for.cond
br label %for.cond
for.end.split: ; preds = %for.cond.preheader
ret void
}