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https://github.com/c64scene-ar/llvm-6502.git
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0f85d54670
It is intended to be used for a family of personality functions that have similar IR preparation requirements. Typically when interoperating with MSVC personality functions, bits of functionality need to be outlined from the main function into helper functions. There is also usually more than one landing pad per invoke, which does not match the LLVM IR landingpad representation. None of this is implemented yet. This change just adds a new enum that is active for *-windows-msvc and delegates to the EH removal preparation pass. No functionality change for other targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224625 91177308-0d34-0410-b5e6-96231b3b80d8
139 lines
4.0 KiB
LLVM
139 lines
4.0 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-linux -O0 | FileCheck %s --check-prefix=X64
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; RUN: llc < %s -mtriple=x86_64-windows-itanium -O0 | FileCheck %s --check-prefix=X64
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; RUN: llc < %s -march=x86 -O0 | FileCheck %s --check-prefix=X32
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; GEP indices are interpreted as signed integers, so they
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; should be sign-extended to 64 bits on 64-bit targets.
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; PR3181
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define i32 @test1(i32 %t3, i32* %t1) nounwind {
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%t9 = getelementptr i32* %t1, i32 %t3 ; <i32*> [#uses=1]
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%t15 = load i32* %t9 ; <i32> [#uses=1]
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ret i32 %t15
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; X32-LABEL: test1:
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; X32: movl (%eax,%ecx,4), %eax
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; X32: ret
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; X64-LABEL: test1:
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; X64: movslq %e[[A0:di|cx]], %rax
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; X64: movl (%r[[A1:si|dx]],%rax,4), %eax
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; X64: ret
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}
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define i32 @test2(i64 %t3, i32* %t1) nounwind {
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%t9 = getelementptr i32* %t1, i64 %t3 ; <i32*> [#uses=1]
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%t15 = load i32* %t9 ; <i32> [#uses=1]
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ret i32 %t15
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; X32-LABEL: test2:
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; X32: movl (%edx,%ecx,4), %e
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; X32: ret
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; X64-LABEL: test2:
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; X64: movl (%r[[A1]],%r[[A0]],4), %eax
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; X64: ret
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}
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; PR4984
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define i8 @test3(i8* %start) nounwind {
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entry:
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%A = getelementptr i8* %start, i64 -2 ; <i8*> [#uses=1]
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%B = load i8* %A, align 1 ; <i8> [#uses=1]
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ret i8 %B
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; X32-LABEL: test3:
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; X32: movl 4(%esp), %eax
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; X32: movb -2(%eax), %al
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; X32: ret
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; X64-LABEL: test3:
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; X64: movb -2(%r[[A0]]), %al
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; X64: ret
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}
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define double @test4(i64 %x, double* %p) nounwind {
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entry:
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%x.addr = alloca i64, align 8 ; <i64*> [#uses=2]
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%p.addr = alloca double*, align 8 ; <double**> [#uses=2]
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store i64 %x, i64* %x.addr
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store double* %p, double** %p.addr
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%tmp = load i64* %x.addr ; <i64> [#uses=1]
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%add = add nsw i64 %tmp, 16 ; <i64> [#uses=1]
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%tmp1 = load double** %p.addr ; <double*> [#uses=1]
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%arrayidx = getelementptr inbounds double* %tmp1, i64 %add ; <double*> [#uses=1]
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%tmp2 = load double* %arrayidx ; <double> [#uses=1]
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ret double %tmp2
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; X32-LABEL: test4:
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; X32: 128(%e{{.*}},%e{{.*}},8)
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; X64-LABEL: test4:
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; X64: 128(%r{{.*}},%r{{.*}},8)
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}
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; PR8961 - Make sure the sext for the GEP addressing comes before the load that
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; is folded.
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define i64 @test5(i8* %A, i32 %I, i64 %B) nounwind {
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%v8 = getelementptr i8* %A, i32 %I
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%v9 = bitcast i8* %v8 to i64*
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%v10 = load i64* %v9
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%v11 = add i64 %B, %v10
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ret i64 %v11
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; X64-LABEL: test5:
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; X64: movslq %e[[A1]], %rax
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; X64-NEXT: (%r[[A0]],%rax),
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; X64: ret
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}
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; PR9500, rdar://9156159 - Don't do non-local address mode folding,
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; because it may require values which wouldn't otherwise be live out
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; of their blocks.
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define void @test6() {
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if.end: ; preds = %if.then, %invoke.cont
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%tmp15 = load i64* undef
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%dec = add i64 %tmp15, 13
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store i64 %dec, i64* undef
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%call17 = invoke i8* @_ZNK18G__FastAllocString4dataEv()
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to label %invoke.cont16 unwind label %lpad
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invoke.cont16: ; preds = %if.then14
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%arrayidx18 = getelementptr inbounds i8* %call17, i64 %dec
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store i8 0, i8* %arrayidx18
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unreachable
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lpad: ; preds = %if.end19, %if.then14, %if.end, %entry
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%exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
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cleanup
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unreachable
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}
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declare i8* @_ZNK18G__FastAllocString4dataEv() nounwind
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; PR10605 / rdar://9930964 - Don't fold loads incorrectly. The load should
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; happen before the store.
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define i32 @test7({i32,i32,i32}* %tmp1, i32 %tmp71, i32 %tmp63) nounwind {
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; X64-LABEL: test7:
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; X64: movl 8({{%rdi|%rcx}}), %eax
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; X64: movl $4, 8({{%rdi|%rcx}})
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%tmp29 = getelementptr inbounds {i32,i32,i32}* %tmp1, i32 0, i32 2
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%tmp30 = load i32* %tmp29, align 4
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%p2 = getelementptr inbounds {i32,i32,i32}* %tmp1, i32 0, i32 2
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store i32 4, i32* %p2
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%tmp72 = or i32 %tmp71, %tmp30
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%tmp73 = icmp ne i32 %tmp63, 32
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br i1 %tmp73, label %T, label %F
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T:
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ret i32 %tmp72
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F:
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ret i32 4
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}
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declare i32 @__gxx_personality_v0(...)
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