mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-25 14:32:53 +00:00
f2e4afd96c
This fixes PR7540. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107809 91177308-0d34-0410-b5e6-96231b3b80d8
144 lines
5.0 KiB
LLVM
144 lines
5.0 KiB
LLVM
; RUN: llc -march=x86 %s -o -
|
|
; RUN: llc -march=x86-64 %s -o -
|
|
|
|
; PR6497
|
|
|
|
; Chain and flag folding issues.
|
|
define i32 @test1() nounwind ssp {
|
|
entry:
|
|
%tmp5.i = volatile load i32* undef ; <i32> [#uses=1]
|
|
%conv.i = zext i32 %tmp5.i to i64 ; <i64> [#uses=1]
|
|
%tmp12.i = volatile load i32* undef ; <i32> [#uses=1]
|
|
%conv13.i = zext i32 %tmp12.i to i64 ; <i64> [#uses=1]
|
|
%shl.i = shl i64 %conv13.i, 32 ; <i64> [#uses=1]
|
|
%or.i = or i64 %shl.i, %conv.i ; <i64> [#uses=1]
|
|
%add16.i = add i64 %or.i, 256 ; <i64> [#uses=1]
|
|
%shr.i = lshr i64 %add16.i, 8 ; <i64> [#uses=1]
|
|
%conv19.i = trunc i64 %shr.i to i32 ; <i32> [#uses=1]
|
|
volatile store i32 %conv19.i, i32* undef
|
|
ret i32 undef
|
|
}
|
|
|
|
; PR6533
|
|
define void @test2(i1 %x, i32 %y) nounwind {
|
|
%land.ext = zext i1 %x to i32 ; <i32> [#uses=1]
|
|
%and = and i32 %y, 1 ; <i32> [#uses=1]
|
|
%xor = xor i32 %and, %land.ext ; <i32> [#uses=1]
|
|
%cmp = icmp eq i32 %xor, 1 ; <i1> [#uses=1]
|
|
br i1 %cmp, label %if.end, label %if.then
|
|
|
|
if.then: ; preds = %land.end
|
|
ret void
|
|
|
|
if.end: ; preds = %land.end
|
|
ret void
|
|
}
|
|
|
|
; PR6577
|
|
%pair = type { i64, double }
|
|
|
|
define void @test3() {
|
|
dependentGraph243.exit:
|
|
%subject19 = load %pair* undef ; <%1> [#uses=1]
|
|
%0 = extractvalue %pair %subject19, 1 ; <double> [#uses=2]
|
|
%1 = select i1 undef, double %0, double undef ; <double> [#uses=1]
|
|
%2 = select i1 undef, double %1, double %0 ; <double> [#uses=1]
|
|
%3 = insertvalue %pair undef, double %2, 1 ; <%1> [#uses=1]
|
|
store %pair %3, %pair* undef
|
|
ret void
|
|
}
|
|
|
|
; PR6605
|
|
define i64 @test4(i8* %P) nounwind ssp {
|
|
entry:
|
|
%tmp1 = load i8* %P ; <i8> [#uses=3]
|
|
%tobool = icmp eq i8 %tmp1, 0 ; <i1> [#uses=1]
|
|
%tmp58 = sext i1 %tobool to i8 ; <i8> [#uses=1]
|
|
%mul.i = and i8 %tmp58, %tmp1 ; <i8> [#uses=1]
|
|
%conv6 = zext i8 %mul.i to i32 ; <i32> [#uses=1]
|
|
%cmp = icmp ne i8 %tmp1, 1 ; <i1> [#uses=1]
|
|
%conv11 = zext i1 %cmp to i32 ; <i32> [#uses=1]
|
|
%call12 = tail call i32 @safe(i32 %conv11) nounwind ; <i32> [#uses=1]
|
|
%and = and i32 %conv6, %call12 ; <i32> [#uses=1]
|
|
%tobool13 = icmp eq i32 %and, 0 ; <i1> [#uses=1]
|
|
br i1 %tobool13, label %if.else, label %return
|
|
|
|
if.else: ; preds = %entry
|
|
br label %return
|
|
|
|
return: ; preds = %if.else, %entry
|
|
ret i64 undef
|
|
}
|
|
|
|
declare i32 @safe(i32)
|
|
|
|
; PR6607
|
|
define fastcc void @test5(i32 %FUNC) nounwind {
|
|
foo:
|
|
%0 = load i8* undef, align 1 ; <i8> [#uses=3]
|
|
%1 = sext i8 %0 to i32 ; <i32> [#uses=2]
|
|
%2 = zext i8 %0 to i32 ; <i32> [#uses=1]
|
|
%tmp1.i5037 = urem i32 %2, 10 ; <i32> [#uses=1]
|
|
%tmp.i5038 = icmp ugt i32 %tmp1.i5037, 15 ; <i1> [#uses=1]
|
|
%3 = zext i1 %tmp.i5038 to i8 ; <i8> [#uses=1]
|
|
%4 = icmp slt i8 %0, %3 ; <i1> [#uses=1]
|
|
%5 = add nsw i32 %1, 256 ; <i32> [#uses=1]
|
|
%storemerge.i.i57 = select i1 %4, i32 %5, i32 %1 ; <i32> [#uses=1]
|
|
%6 = shl i32 %storemerge.i.i57, 16 ; <i32> [#uses=1]
|
|
%7 = sdiv i32 %6, -256 ; <i32> [#uses=1]
|
|
%8 = trunc i32 %7 to i8 ; <i8> [#uses=1]
|
|
store i8 %8, i8* undef, align 1
|
|
ret void
|
|
}
|
|
|
|
|
|
; Crash commoning identical asms.
|
|
; PR6803
|
|
define void @test6(i1 %C) nounwind optsize ssp {
|
|
entry:
|
|
br i1 %C, label %do.body55, label %do.body92
|
|
|
|
do.body55: ; preds = %if.else36
|
|
call void asm sideeffect "foo", "~{dirflag},~{fpsr},~{flags}"() nounwind, !srcloc !0
|
|
ret void
|
|
|
|
do.body92: ; preds = %if.then66
|
|
call void asm sideeffect "foo", "~{dirflag},~{fpsr},~{flags}"() nounwind, !srcloc !1
|
|
ret void
|
|
}
|
|
|
|
!0 = metadata !{i32 633550}
|
|
!1 = metadata !{i32 634261}
|
|
|
|
|
|
; Crash during XOR optimization.
|
|
; <rdar://problem/7869290>
|
|
|
|
define void @test7() nounwind ssp {
|
|
entry:
|
|
br i1 undef, label %bb14, label %bb67
|
|
|
|
bb14:
|
|
%tmp0 = trunc i16 undef to i1
|
|
%tmp1 = load i8* undef, align 8
|
|
%tmp2 = shl i8 %tmp1, 4
|
|
%tmp3 = lshr i8 %tmp2, 7
|
|
%tmp4 = trunc i8 %tmp3 to i1
|
|
%tmp5 = icmp ne i1 %tmp0, %tmp4
|
|
br i1 %tmp5, label %bb14, label %bb67
|
|
|
|
bb67:
|
|
ret void
|
|
}
|
|
|
|
; Crash when trying to copy AH to AL.
|
|
; PR7540
|
|
define void @copy8bitregs() nounwind {
|
|
entry:
|
|
%div.i = sdiv i32 115200, 0
|
|
%shr8.i = lshr i32 %div.i, 8
|
|
%conv4.i = trunc i32 %shr8.i to i8
|
|
call void asm sideeffect "outb $0, ${1:w}", "{ax},N{dx},~{dirflag},~{fpsr},~{flags}"(i8 %conv4.i, i32 1017) nounwind
|
|
unreachable
|
|
}
|