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https://github.com/RPCS3/llvm-mirror.git
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58fdd5df47
It adjusts from RSP-after-prologue to RBP, which is what SEH filters need to do before they can use llvm.localrecover. Fixes SEH filter captures, which were broken in r250088. Issue reported by Alex Crichton. llvm-svn: 255707
147 lines
5.8 KiB
LLVM
147 lines
5.8 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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; Test case based on this source:
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; int puts(const char*);
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; __declspec(noinline) void crash() {
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; *(volatile int*)0 = 42;
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; }
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; int filt();
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; void use_both() {
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; __try {
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; __try {
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; crash();
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; } __finally {
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; puts("__finally");
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; }
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; } __except (filt()) {
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; puts("__except");
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; }
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; }
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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-msvc"
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$"\01??_C@_09KJEHOMHG@__finally?$AA@" = comdat any
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$"\01??_C@_08MLCMLGHM@__except?$AA@" = comdat any
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@"\01??_C@_09KJEHOMHG@__finally?$AA@" = linkonce_odr unnamed_addr constant [10 x i8] c"__finally\00", comdat, align 1
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@"\01??_C@_08MLCMLGHM@__except?$AA@" = linkonce_odr unnamed_addr constant [9 x i8] c"__except\00", comdat, align 1
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declare void @crash()
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declare i32 @filt()
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; Function Attrs: nounwind uwtable
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define void @use_both() #1 personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) {
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entry:
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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invoke void @crash() #5
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to label %invoke.cont unwind label %__finally
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invoke.cont: ; preds = %entry
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%0 = call i8* @llvm.localaddress()
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invoke void @"\01?fin$0@0@use_both@@"(i1 zeroext false, i8* %0) #5
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to label %invoke.cont2 unwind label %catch.dispatch
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invoke.cont2: ; preds = %invoke.cont
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br label %__try.cont
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__finally: ; preds = %entry
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%cleanuppad = cleanuppad within none []
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%locals = call i8* @llvm.localaddress()
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invoke void @"\01?fin$0@0@use_both@@"(i1 zeroext true, i8* %locals) #5 [ "funclet"(token %cleanuppad) ]
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to label %invoke.cont3 unwind label %catch.dispatch
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invoke.cont3: ; preds = %__finally
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cleanupret from %cleanuppad unwind label %catch.dispatch
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catch.dispatch: ; preds = %invoke.cont3, %lpad1
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%cs1 = catchswitch within none [label %__except] unwind to caller
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__except: ; preds = %catch.dispatch
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%catchpad = catchpad within %cs1 [i8* bitcast (i32 (i8*, i8*)* @"\01?filt$0@0@use_both@@" to i8*)]
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%call = call i32 @puts(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @"\01??_C@_08MLCMLGHM@__except?$AA@", i32 0, i32 0)) [ "funclet"(token %catchpad) ]
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catchret from %catchpad to label %__try.cont
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__try.cont: ; preds = %__except, %invoke.cont2
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ret void
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}
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; CHECK-LABEL: use_both:
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; CHECK: .Ltmp0
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; CHECK: callq crash
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; CHECK: .Ltmp1
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; CHECK: .Ltmp4
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; CHECK: callq "?fin$0@0@use_both@@"
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; CHECK: .Ltmp5
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; CHECK: retq
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;
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; CHECK: .seh_handlerdata
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; CHECK-NEXT: .Luse_both$parent_frame_offset
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; CHECK-NEXT: .long (.Llsda_end0-.Llsda_begin0)/16
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; CHECK-NEXT: .Llsda_begin0:
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; CHECK-NEXT: .long .Ltmp0@IMGREL+1
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; CHECK-NEXT: .long .Ltmp1@IMGREL+1
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; CHECK-NEXT: .long "?dtor$2@?0?use_both@4HA"@IMGREL
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long .Ltmp0@IMGREL+1
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; CHECK-NEXT: .long .Ltmp1@IMGREL+1
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; CHECK-NEXT: .long "?filt$0@0@use_both@@"@IMGREL
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; CHECK-NEXT: .long .LBB0_{{[0-9]+}}@IMGREL
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; CHECK-NEXT: .long .Ltmp4@IMGREL+1
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; CHECK-NEXT: .long .Ltmp5@IMGREL+1
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; CHECK-NEXT: .long "?filt$0@0@use_both@@"@IMGREL
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; CHECK-NEXT: .long .LBB0_{{[0-9]+}}@IMGREL
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; CHECK-NEXT: .Llsda_end0:
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; Function Attrs: noinline nounwind
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define internal i32 @"\01?filt$0@0@use_both@@"(i8* %exception_pointers, i8* %frame_pointer) #2 {
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entry:
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%frame_pointer.addr = alloca i8*, align 8
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%exception_pointers.addr = alloca i8*, align 8
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%exn.slot = alloca i8*
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store i8* %frame_pointer, i8** %frame_pointer.addr, align 8
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store i8* %exception_pointers, i8** %exception_pointers.addr, align 8
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%0 = load i8*, i8** %exception_pointers.addr
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%1 = bitcast i8* %0 to { i32*, i8* }*
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%2 = getelementptr inbounds { i32*, i8* }, { i32*, i8* }* %1, i32 0, i32 0
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%3 = load i32*, i32** %2
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%4 = load i32, i32* %3
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%5 = zext i32 %4 to i64
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%6 = inttoptr i64 %5 to i8*
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store i8* %6, i8** %exn.slot
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%call = call i32 @filt()
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ret i32 %call
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}
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define internal void @"\01?fin$0@0@use_both@@"(i1 zeroext %abnormal_termination, i8* %frame_pointer) #3 {
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entry:
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%frame_pointer.addr = alloca i8*, align 8
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%abnormal_termination.addr = alloca i8, align 1
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store i8* %frame_pointer, i8** %frame_pointer.addr, align 8
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%frombool = zext i1 %abnormal_termination to i8
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store i8 %frombool, i8* %abnormal_termination.addr, align 1
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%call = call i32 @puts(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @"\01??_C@_09KJEHOMHG@__finally?$AA@", i32 0, i32 0))
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ret void
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}
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declare i32 @puts(i8*) #3
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declare i32 @__C_specific_handler(...)
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; Function Attrs: nounwind readnone
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declare i8* @llvm.localaddress() #4
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; Function Attrs: nounwind readnone
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declare i32 @llvm.eh.typeid.for(i8*) #4
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attributes #0 = { noinline nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { noinline nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #3 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #4 = { nounwind readnone }
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attributes #5 = { noinline }
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attributes #6 = { nounwind }
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