mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-01-19 04:32:19 +00:00
76 lines
1.6 KiB
LLVM
76 lines
1.6 KiB
LLVM
|
; RUN: llc -march=x86 -enable-block-placement < %s | FileCheck %s
|
||
|
|
|
||
|
|
declare void @error(i32 %i, i32 %a, i32 %b)
|
||
|
|
|
||
|
|
define i32 @test1(i32 %i, i32* %a, i32 %b) {
|
||
|
|
; Test a chain of ifs, where the block guarded by the if is error handling code
|
||
|
|
; that is not expected to run.
|
||
|
|
; CHECK: test1:
|
||
|
|
; CHECK: %entry
|
||
|
|
; CHECK: %else1
|
||
|
|
; CHECK: %else2
|
||
|
|
; CHECK: %else3
|
||
|
|
; CHECK: %else4
|
||
|
|
; CHECK: %exit
|
||
|
|
; CHECK: %then1
|
||
|
|
; CHECK: %then2
|
||
|
|
; CHECK: %then3
|
||
|
|
; CHECK: %then4
|
||
|
|
; CHECK: %then5
|
||
|
|
|
||
|
|
entry:
|
||
|
|
%gep1 = getelementptr i32* %a, i32 1
|
||
|
|
%val1 = load i32* %gep1
|
||
|
|
%cond1 = icmp ugt i32 %val1, 1
|
||
|
|
br i1 %cond1, label %then1, label %else1, !prof !0
|
||
|
|
|
||
|
|
then1:
|
||
|
|
call void @error(i32 %i, i32 1, i32 %b)
|
||
|
|
br label %else1
|
||
|
|
|
||
|
|
else1:
|
||
|
|
%gep2 = getelementptr i32* %a, i32 2
|
||
|
|
%val2 = load i32* %gep2
|
||
|
|
%cond2 = icmp ugt i32 %val2, 2
|
||
|
|
br i1 %cond2, label %then2, label %else2, !prof !0
|
||
|
|
|
||
|
|
then2:
|
||
|
|
call void @error(i32 %i, i32 1, i32 %b)
|
||
|
|
br label %else2
|
||
|
|
|
||
|
|
else2:
|
||
|
|
%gep3 = getelementptr i32* %a, i32 3
|
||
|
|
%val3 = load i32* %gep3
|
||
|
|
%cond3 = icmp ugt i32 %val3, 3
|
||
|
|
br i1 %cond3, label %then3, label %else3, !prof !0
|
||
|
|
|
||
|
|
then3:
|
||
|
|
call void @error(i32 %i, i32 1, i32 %b)
|
||
|
|
br label %else3
|
||
|
|
|
||
|
|
else3:
|
||
|
|
%gep4 = getelementptr i32* %a, i32 4
|
||
|
|
%val4 = load i32* %gep4
|
||
|
|
%cond4 = icmp ugt i32 %val4, 4
|
||
|
|
br i1 %cond4, label %then4, label %else4, !prof !0
|
||
|
|
|
||
|
|
then4:
|
||
|
|
call void @error(i32 %i, i32 1, i32 %b)
|
||
|
|
br label %else4
|
||
|
|
|
||
|
|
else4:
|
||
|
|
%gep5 = getelementptr i32* %a, i32 3
|
||
|
|
%val5 = load i32* %gep5
|
||
|
|
%cond5 = icmp ugt i32 %val5, 3
|
||
|
|
br i1 %cond5, label %then5, label %exit, !prof !0
|
||
|
|
|
||
|
|
then5:
|
||
|
|
call void @error(i32 %i, i32 1, i32 %b)
|
||
|
|
br label %exit
|
||
|
|
|
||
|
|
exit:
|
||
|
|
ret i32 %b
|
||
|
|
}
|
||
|
|
|
||
|
|
!0 = metadata !{metadata !"branch_weights", i32 4, i32 64}
|