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David Greene
a44ee671df
Reassociation's NegateValue moved instructions to the beginning of blocks (after PHIs) without checking for exception handling pads. It's possible for reassociation to move something into an exception handling block so we need to make sure we don't move things too early in the block. This change advances the insertion point past any exception handling pads. If the block we want to move into contains a catchswitch, we cannot move into it. In that case just create a new neg as if we had not found an existing neg to move. Differential Revision: https://reviews.llvm.org/D61089 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360262 91177308-0d34-0410-b5e6-96231b3b80d8
55 lines
1.9 KiB
LLVM
55 lines
1.9 KiB
LLVM
; Reassociate used to move the negation of $time_1_P14.0 above the
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; landingpad.
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;
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; RUN: opt -reassociate -disable-output < %s
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;
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; ModuleID = 'bugpoint-reduced-simplified.bc'
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%"lp.2234.4378.7378.12512.15079.17646.20213.22780.25347.27914.40747.53580.74113.76680.86947.89514.92081.94648.115163.130561" = type { i8*, i32 }
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%__type_info.2235.4379.7379.12513.15080.17647.20214.22781.25348.27915.40748.53581.74114.76681.86948.89515.92082.94649.115162.130560 = type { i64*, i8* }
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declare i32 @__gxx_personality_v0(...)
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declare void @b() #0
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define void @a() #0 personality i32 (...)* @__gxx_personality_v0 {
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", bb1":
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invoke void @b()
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to label %invoke.cont unwind label %"bb22"
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", bb8": ; preds = %invoke.cont
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invoke void @c()
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to label %invoke.cont25 unwind label %"bb22"
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", bb15": ; preds = %invoke.cont
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ret void
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"bb22": ; preds = %", bb8", %", bb1"
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%"$time_1_P14.0" = phi i64 [ undef, %", bb8" ], [ undef, %", bb1" ]
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%0 = landingpad %"lp.2234.4378.7378.12512.15079.17646.20213.22780.25347.27914.40747.53580.74113.76680.86947.89514.92081.94648.115163.130561"
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cleanup
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catch %__type_info.2235.4379.7379.12513.15080.17647.20214.22781.25348.27915.40748.53581.74114.76681.86948.89515.92082.94649.115162.130560* null
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%r79 = sub i64 0, %"$time_1_P14.0"
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%r81 = add i64 %r79, undef
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%r93 = add i64 %r81, undef
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%r95 = sub i64 %r93, %"$time_1_P14.0"
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%r98 = icmp ult i64 %r95, undef
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unreachable
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invoke.cont: ; preds = %", bb1"
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br i1 undef, label %", bb15", label %", bb8"
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invoke.cont25: ; preds = %", bb8"
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unreachable
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}
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declare void @c() #0
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attributes #0 = { "no-frame-pointer-elim-non-leaf" }
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!llvm.module.flags = !{!0}
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!0 = !{i32 1, !"Debug Info Version", i32 3}
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