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10e521338c
Summary: This patch fixes a bug in prepareICWorklistFromFunction, where the loop becomes infinite with instructions of token type. The patch checks if the instruction is token type, and if so it updates EndInst with the current instruction. Reviewers: reames, majnemer Subscribers: llvm-commits, sanjoy Differential Revision: http://reviews.llvm.org/D15859 llvm-svn: 256792
107 lines
2.6 KiB
LLVM
107 lines
2.6 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc18.0.0"
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declare i32 @__CxxFrameHandler3(...)
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define void @test1() personality i32 (...)* @__CxxFrameHandler3 {
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bb:
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unreachable
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unreachable:
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%cl = cleanuppad within none []
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cleanupret from %cl unwind to caller
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}
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; CHECK-LABEL: define void @test1(
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; CHECK: unreachable:
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; CHECK: %cl = cleanuppad within none []
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; CHECK: cleanupret from %cl unwind to caller
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define void @test2(i8 %A, i8 %B) personality i32 (...)* @__CxxFrameHandler3 {
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bb:
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%X = zext i8 %A to i32
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invoke void @g(i32 0)
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to label %cont
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unwind label %catch
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cont:
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%Y = zext i8 %B to i32
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invoke void @g(i32 0)
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to label %unreachable
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unwind label %catch
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catch:
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%phi = phi i32 [ %X, %bb ], [ %Y, %cont ]
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%cs = catchswitch within none [label %doit] unwind to caller
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doit:
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%cl = catchpad within %cs []
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call void @g(i32 %phi)
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unreachable
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unreachable:
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unreachable
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}
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; CHECK-LABEL: define void @test2(
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; CHECK: %X = zext i8 %A to i32
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; CHECK: %Y = zext i8 %B to i32
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; CHECK: %phi = phi i32 [ %X, %bb ], [ %Y, %cont ]
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define void @test3(i8 %A, i8 %B) personality i32 (...)* @__CxxFrameHandler3 {
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bb:
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%X = zext i8 %A to i32
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invoke void @g(i32 0)
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to label %cont
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unwind label %catch
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cont:
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%Y = zext i8 %B to i32
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invoke void @g(i32 0)
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to label %cont2
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unwind label %catch
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cont2:
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invoke void @g(i32 0)
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to label %unreachable
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unwind label %catch
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catch:
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%phi = phi i32 [ %X, %bb ], [ %Y, %cont ], [ %Y, %cont2 ]
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%cs = catchswitch within none [label %doit] unwind to caller
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doit:
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%cl = catchpad within %cs []
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call void @g(i32 %phi)
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unreachable
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unreachable:
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unreachable
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}
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; CHECK-LABEL: define void @test3(
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; CHECK: %X = zext i8 %A to i32
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; CHECK: %Y = zext i8 %B to i32
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; CHECK: %phi = phi i32 [ %X, %bb ], [ %Y, %cont ], [ %Y, %cont2 ]
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declare void @foo()
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declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
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define void @test4(i8 addrspace(1)* %obj) gc "statepoint-example" {
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bb:
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unreachable
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unreachable:
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call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
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ret void
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}
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; CHECK-LABEL: define void @test4(
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; CHECK: unreachable:
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; CHECK: call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
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; CHECK: ret void
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declare void @g(i32)
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