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https://github.com/c64scene-ar/llvm-6502.git
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3fad2bcd25
First chunk of actual fast-isel selection code. This handles direct and indirect branches, as well as feeding compares for direct branches. PPCFastISel::PPCEmitIntExt() is just roughed in and will be expanded in a future patch. This also corrects a problem with selection for constant pool entries in JIT mode or with small code model. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189202 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
1.3 KiB
LLVM
44 lines
1.3 KiB
LLVM
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
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define i32 @t1(i32 %a, i32 %b) nounwind uwtable ssp {
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entry:
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; ELF64: t1
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%x = add i32 %a, %b
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br i1 1, label %if.then, label %if.else
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; ELF64-NOT: b {{\.?}}LBB0_1
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if.then: ; preds = %entry
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call void @foo1()
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br label %if.end7
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if.else: ; preds = %entry
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br i1 0, label %if.then2, label %if.else3
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; ELF64: b {{\.?}}LBB0_4
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if.then2: ; preds = %if.else
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call void @foo2()
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br label %if.end6
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if.else3: ; preds = %if.else
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%y = sub i32 %a, %b
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br i1 1, label %if.then5, label %if.end
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; ELF64-NOT: b {{\.?}}LBB0_5
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if.then5: ; preds = %if.else3
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call void @foo1()
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br label %if.end
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if.end: ; preds = %if.then5, %if.else3
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br label %if.end6
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if.end6: ; preds = %if.end, %if.then2
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br label %if.end7
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if.end7: ; preds = %if.end6, %if.then
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ret i32 0
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}
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declare void @foo1()
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declare void @foo2()
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