forked from OSchip/llvm-project
175 lines
6.1 KiB
LLVM
175 lines
6.1 KiB
LLVM
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; RUN: opt -irce -S -verify-loop-info -irce-print-changed-loops -irce-skip-profitability-checks < %s 2>&1 | FileCheck %s
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; CHECK: irce: in function test_inc_eq: constrained Loop at depth 1 containing: %for.body<header>,%if.else,%if.then,%for.inc<latch><exiting>
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; CHECK: irce: in function test_inc_ne: constrained Loop at depth 1 containing: %for.body<header>,%if.else,%if.then,%for.inc<latch><exiting>
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; CHECK: irce: in function test_inc_slt: constrained Loop at depth 1 containing: %for.body<header>,%if.else,%if.then,%for.inc<latch><exiting>
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; CHECK: irce: in function test_inc_ult: constrained Loop at depth 1 containing: %for.body<header>,%if.else,%if.then,%for.inc<latch><exiting>
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; CHECK-LABEL: test_inc_eq(
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; CHECK: main.exit.selector:
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; CHECK: [[PSEUDO_PHI:%[^ ]+]] = phi i32 [ %inc, %for.inc ]
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; CHECK: [[COND:%[^ ]+]] = icmp ult i32 [[PSEUDO_PHI]], %N
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; CHECK: br i1 [[COND]], label %main.pseudo.exit, label %for.cond.cleanup.loopexit
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define void @test_inc_eq(i32* nocapture %a, i32* nocapture readonly %b, i32* nocapture readonly %c, i32 %N) {
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entry:
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%cmp16 = icmp sgt i32 %N, 0
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br i1 %cmp16, label %for.body, label %for.cond.cleanup
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for.cond.cleanup:
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ret void
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for.body:
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%i.017 = phi i32 [ %inc, %for.inc ], [ 0, %entry ]
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%cmp1 = icmp ult i32 %i.017, 512
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%arrayidx = getelementptr inbounds i32, i32* %b, i32 %i.017
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%0 = load i32, i32* %arrayidx, align 4
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%arrayidx2 = getelementptr inbounds i32, i32* %c, i32 %i.017
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%1 = load i32, i32* %arrayidx2, align 4
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br i1 %cmp1, label %if.then, label %if.else
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if.then:
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%sub = sub i32 %0, %1
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%arrayidx3 = getelementptr inbounds i32, i32* %a, i32 %i.017
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%2 = load i32, i32* %arrayidx3, align 4
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%add = add nsw i32 %sub, %2
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store i32 %add, i32* %arrayidx3, align 4
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br label %for.inc
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if.else:
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%add6 = add nsw i32 %1, %0
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%arrayidx7 = getelementptr inbounds i32, i32* %a, i32 %i.017
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store i32 %add6, i32* %arrayidx7, align 4
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br label %for.inc
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for.inc:
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%inc = add nuw nsw i32 %i.017, 1
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%exitcond = icmp eq i32 %inc, %N
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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}
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; CHECK-LABEL: test_inc_ne
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; CHECK: main.exit.selector:
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; CHECK: [[PSEUDO_PHI:%[^ ]+]] = phi i32 [ %inc, %for.inc ]
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; CHECK: [[COND:%[^ ]+]] = icmp slt i32 [[PSEUDO_PHI]], %N
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; CHECK: br i1 [[COND]], label %main.pseudo.exit, label %for.cond.cleanup.loopexit
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define void @test_inc_ne(i32* nocapture %a, i32* nocapture readonly %b, i32* nocapture readonly %c, i32 %N) {
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entry:
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%cmp16 = icmp sgt i32 %N, 0
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br i1 %cmp16, label %for.body, label %for.cond.cleanup
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for.cond.cleanup:
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ret void
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for.body:
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%i.017 = phi i32 [ %inc, %for.inc ], [ 0, %entry ]
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%cmp1 = icmp ult i32 %i.017, 512
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%arrayidx = getelementptr inbounds i32, i32* %b, i32 %i.017
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%0 = load i32, i32* %arrayidx, align 4
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%arrayidx2 = getelementptr inbounds i32, i32* %c, i32 %i.017
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%1 = load i32, i32* %arrayidx2, align 4
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br i1 %cmp1, label %if.then, label %if.else
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if.then:
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%sub = sub i32 %0, %1
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%arrayidx3 = getelementptr inbounds i32, i32* %a, i32 %i.017
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%2 = load i32, i32* %arrayidx3, align 4
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%add = add nsw i32 %sub, %2
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store i32 %add, i32* %arrayidx3, align 4
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br label %for.inc
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if.else:
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%add6 = add nsw i32 %1, %0
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%arrayidx7 = getelementptr inbounds i32, i32* %a, i32 %i.017
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store i32 %add6, i32* %arrayidx7, align 4
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br label %for.inc
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for.inc:
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%inc = add nuw nsw i32 %i.017, 1
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%exitcond = icmp ne i32 %inc, %N
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br i1 %exitcond, label %for.body, label %for.cond.cleanup
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}
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; CHECK-LABEL: test_inc_slt(
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; CHECK: main.exit.selector:
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; CHECK: [[PSEUDO_PHI:%[^ ]+]] = phi i32 [ %inc, %for.inc ]
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; CHECK: [[COND:%[^ ]+]] = icmp slt i32 [[PSEUDO_PHI]], %N
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; CHECK: br i1 [[COND]], label %main.pseudo.exit, label %for.cond.cleanup.loopexit
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define void @test_inc_slt(i32* nocapture %a, i32* nocapture readonly %b, i32* nocapture readonly %c, i32 %N) {
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entry:
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%cmp16 = icmp sgt i32 %N, 0
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br i1 %cmp16, label %for.body, label %for.cond.cleanup
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for.cond.cleanup:
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ret void
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for.body:
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%i.017 = phi i32 [ %inc, %for.inc ], [ 0, %entry ]
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%cmp1 = icmp ult i32 %i.017, 512
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%arrayidx = getelementptr inbounds i32, i32* %b, i32 %i.017
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%0 = load i32, i32* %arrayidx, align 4
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%arrayidx2 = getelementptr inbounds i32, i32* %c, i32 %i.017
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%1 = load i32, i32* %arrayidx2, align 4
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br i1 %cmp1, label %if.then, label %if.else
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if.then:
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%sub = sub i32 %0, %1
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%arrayidx3 = getelementptr inbounds i32, i32* %a, i32 %i.017
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%2 = load i32, i32* %arrayidx3, align 4
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%add = add nsw i32 %sub, %2
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store i32 %add, i32* %arrayidx3, align 4
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br label %for.inc
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if.else:
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%add6 = add nsw i32 %1, %0
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%arrayidx7 = getelementptr inbounds i32, i32* %a, i32 %i.017
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store i32 %add6, i32* %arrayidx7, align 4
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br label %for.inc
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for.inc:
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%inc = add nuw nsw i32 %i.017, 1
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%exitcond = icmp slt i32 %inc, %N
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br i1 %exitcond, label %for.body, label %for.cond.cleanup
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}
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; CHECK-LABEL: test_inc_ult
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; CHECK: main.exit.selector:
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; CHECK: [[PSEUDO_PHI:%[^ ]+]] = phi i32 [ %inc, %for.inc ]
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; CHECK: [[COND:%[^ ]+]] = icmp ult i32 [[PSEUDO_PHI]], %N
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; CHECK: br i1 [[COND]], label %main.pseudo.exit, label %for.cond.cleanup.loopexit
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define void @test_inc_ult(i32* nocapture %a, i32* nocapture readonly %b, i32* nocapture readonly %c, i32 %N) {
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entry:
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%cmp16 = icmp ugt i32 %N, 0
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br i1 %cmp16, label %for.body, label %for.cond.cleanup
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for.cond.cleanup:
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ret void
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for.body:
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%i.017 = phi i32 [ %inc, %for.inc ], [ 0, %entry ]
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%cmp1 = icmp ult i32 %i.017, 512
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%arrayidx = getelementptr inbounds i32, i32* %b, i32 %i.017
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%0 = load i32, i32* %arrayidx, align 4
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%arrayidx2 = getelementptr inbounds i32, i32* %c, i32 %i.017
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%1 = load i32, i32* %arrayidx2, align 4
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br i1 %cmp1, label %if.then, label %if.else
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if.then:
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%sub = sub i32 %0, %1
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%arrayidx3 = getelementptr inbounds i32, i32* %a, i32 %i.017
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%2 = load i32, i32* %arrayidx3, align 4
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%add = add nsw i32 %sub, %2
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store i32 %add, i32* %arrayidx3, align 4
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br label %for.inc
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if.else:
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%add6 = add nsw i32 %1, %0
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%arrayidx7 = getelementptr inbounds i32, i32* %a, i32 %i.017
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store i32 %add6, i32* %arrayidx7, align 4
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br label %for.inc
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for.inc:
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%inc = add nuw nsw i32 %i.017, 1
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%exitcond = icmp ult i32 %inc, %N
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br i1 %exitcond, label %for.body, label %for.cond.cleanup
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}
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