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https://github.com/RPCS3/llvm-mirror.git
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bc857175cc
Summary: While setting kill flags on instructions inside a BUNDLE, we bail out as soon as we set kill flag on a register. But we are missing a check when all the registers already have the correct kill flag set. We need to bail out in that case as well. This patch refactors the old code and simply makes use of the addRegisterKilled function in MachineInstr.cpp in order to determine whether to set/remove kill on an instruction. Reviewers: apazos, t.p.northover, pete, MatzeB Subscribers: MatzeB, davide, llvm-commits Differential Revision: http://reviews.llvm.org/D17356 llvm-svn: 269092
42 lines
1.6 KiB
LLVM
42 lines
1.6 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -misched-postra=true
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define i32 @test_cpsr() {
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entry:
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%a = alloca [10 x i32], align 4
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%0 = bitcast [10 x i32]* %a to i8*
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%arrayidx.gep = getelementptr [10 x i32], [10 x i32]* %a, i32 0, i32 0
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br label %for.body
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for.cond.cleanup:
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%c.1.reg2mem.0.lcssa = phi i32 [ %c.1.reg2mem.0, %for.inc ]
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ret i32 %c.1.reg2mem.0.lcssa
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for.body:
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%1 = phi i32 [ 0, %entry ], [ %.pre, %for.inc.for.body_crit_edge ]
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%c.018.reg2mem.0 = phi i32 [ 0, %entry ], [ %c.1.reg2mem.0, %for.inc.for.body_crit_edge ]
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%b.017.reg2mem.0 = phi double [ 0.000000e+00, %entry ], [ %b.1.reg2mem.0, %for.inc.for.body_crit_edge ]
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%arrayidx.phi = phi i32* [ %arrayidx.gep, %entry ], [ %arrayidx.inc, %for.inc.for.body_crit_edge ]
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%i.019 = phi i32 [ 0, %entry ], [ %inc, %for.inc.for.body_crit_edge ]
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%cmp1 = icmp slt i32 %1, 10
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%arrayidx.inc = getelementptr i32, i32* %arrayidx.phi, i32 1
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br i1 %cmp1, label %for.inc, label %if.end
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if.end:
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%conv = sitofp i32 %i.019 to double
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%cmp2 = fcmp nsz ogt double %conv, %b.017.reg2mem.0
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%selv = select i1 %cmp2, double %conv, double %b.017.reg2mem.0
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%selv7 = select i1 %cmp2, i32 %i.019, i32 %c.018.reg2mem.0
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br label %for.inc
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for.inc:
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%b.1.reg2mem.0 = phi double [ %b.017.reg2mem.0, %for.body ], [ %selv, %if.end ]
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%c.1.reg2mem.0 = phi i32 [ %c.018.reg2mem.0, %for.body ], [ %selv7, %if.end ]
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%exitcond = icmp eq i32 %i.019, 9
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br i1 %exitcond, label %for.cond.cleanup, label %for.inc.for.body_crit_edge
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for.inc.for.body_crit_edge:
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%inc = add nuw nsw i32 %i.019, 1
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%.pre = load i32, i32* %arrayidx.inc, align 4
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br label %for.body
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}
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