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https://github.com/c64scene-ar/llvm-6502.git
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cc714e2142
The personality routine currently lives in the LandingPadInst. This isn't desirable because: - All LandingPadInsts in the same function must have the same personality routine. This means that each LandingPadInst beyond the first has an operand which produces no additional information. - There is ongoing work to introduce EH IR constructs other than LandingPadInst. Moving the personality routine off of any one particular Instruction and onto the parent function seems a lot better than have N different places a personality function can sneak onto an exceptional function. Differential Revision: http://reviews.llvm.org/D10429 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239940 91177308-0d34-0410-b5e6-96231b3b80d8
92 lines
3.2 KiB
LLVM
92 lines
3.2 KiB
LLVM
; RUN: llc -march=mipsel -mcpu=mips16 -relocation-model=pic -O3 < %s | FileCheck %s -check-prefix=16
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;16: main:
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;16-NEXT: [[TMP:.*]]:
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;16-NEXT: $func_begin0 = ([[TMP]])
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;16-NEXT: .cfi_startproc
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;16-NEXT: .cfi_personality
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@.str = private unnamed_addr constant [7 x i8] c"hello\0A\00", align 1
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@_ZTIi = external constant i8*
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@.str1 = private unnamed_addr constant [15 x i8] c"exception %i \0A\00", align 1
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define i32 @main() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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%retval = alloca i32, align 4
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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%e = alloca i32, align 4
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store i32 0, i32* %retval
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%call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i32 0, i32 0))
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%exception = call i8* @__cxa_allocate_exception(i32 4) nounwind
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%0 = bitcast i8* %exception to i32*
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store i32 20, i32* %0
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invoke void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTIi to i8*), i8* null) noreturn
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to label %unreachable unwind label %lpad
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lpad: ; preds = %entry
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%1 = landingpad { i8*, i32 }
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%2 = extractvalue { i8*, i32 } %1, 0
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store i8* %2, i8** %exn.slot
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%3 = extractvalue { i8*, i32 } %1, 1
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store i32 %3, i32* %ehselector.slot
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br label %catch.dispatch
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catch.dispatch: ; preds = %lpad
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%sel = load i32, i32* %ehselector.slot
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%4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) nounwind
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%matches = icmp eq i32 %sel, %4
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br i1 %matches, label %catch, label %eh.resume
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catch: ; preds = %catch.dispatch
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%exn = load i8*, i8** %exn.slot
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%5 = call i8* @__cxa_begin_catch(i8* %exn) nounwind
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%6 = bitcast i8* %5 to i32*
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%exn.scalar = load i32, i32* %6
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store i32 %exn.scalar, i32* %e, align 4
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%7 = load i32, i32* %e, align 4
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%call2 = invoke i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str1, i32 0, i32 0), i32 %7)
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to label %invoke.cont unwind label %lpad1
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invoke.cont: ; preds = %catch
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call void @__cxa_end_catch() nounwind
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br label %try.cont
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try.cont: ; preds = %invoke.cont
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ret i32 0
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lpad1: ; preds = %catch
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%8 = landingpad { i8*, i32 }
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cleanup
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%9 = extractvalue { i8*, i32 } %8, 0
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store i8* %9, i8** %exn.slot
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%10 = extractvalue { i8*, i32 } %8, 1
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store i32 %10, i32* %ehselector.slot
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call void @__cxa_end_catch() nounwind
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br label %eh.resume
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eh.resume: ; preds = %lpad1, %catch.dispatch
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%exn3 = load i8*, i8** %exn.slot
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%sel4 = load i32, i32* %ehselector.slot
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%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn3, 0
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%lpad.val5 = insertvalue { i8*, i32 } %lpad.val, i32 %sel4, 1
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resume { i8*, i32 } %lpad.val5
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unreachable: ; preds = %entry
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unreachable
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}
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declare i32 @printf(i8*, ...)
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declare i8* @__cxa_allocate_exception(i32)
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declare i32 @__gxx_personality_v0(...)
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declare void @__cxa_throw(i8*, i8*, i8*)
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declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone
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declare i8* @__cxa_begin_catch(i8*)
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declare void @__cxa_end_catch()
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