derek.holloway
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65 lines
2.1 KiB
LLVM
65 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc --mtriple=loongarch32 -mattr=+32s,+d < %s | FileCheck %s --check-prefix=LA32
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; RUN: llc --mtriple=loongarch64 -mattr=+d < %s | FileCheck %s --check-prefix=LA64
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declare i32 @llvm.loongarch.csrrd.w(i32 immarg) nounwind
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declare i32 @llvm.loongarch.csrwr.w(i32, i32 immarg) nounwind
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declare void @bug()
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define dso_local void @foo(i32 noundef signext %flag) nounwind {
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; LA32-LABEL: foo:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: beqz $a0, .LBB0_2
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; LA32-NEXT: # %bb.1: # %if.then
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; LA32-NEXT: csrrd $a0, 2
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; LA32-NEXT: ori $a0, $a0, 1
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; LA32-NEXT: csrwr $a0, 2
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; LA32-NEXT: .LBB0_2: # %if.end
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; LA32-NEXT: csrrd $a0, 2
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; LA32-NEXT: andi $a0, $a0, 1
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; LA32-NEXT: bnez $a0, .LBB0_4
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; LA32-NEXT: # %bb.3: # %if.then2
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; LA32-NEXT: b bug
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; LA32-NEXT: .LBB0_4: # %if.end3
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; LA32-NEXT: ret
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;
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; LA64-LABEL: foo:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: beqz $a0, .LBB0_2
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; LA64-NEXT: # %bb.1: # %if.then
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; LA64-NEXT: csrrd $a0, 2
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; LA64-NEXT: ori $a0, $a0, 1
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; LA64-NEXT: csrwr $a0, 2
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; LA64-NEXT: .LBB0_2: # %if.end
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; LA64-NEXT: csrrd $a0, 2
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; LA64-NEXT: andi $a0, $a0, 1
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; LA64-NEXT: bnez $a0, .LBB0_4
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; LA64-NEXT: # %bb.3: # %if.then2
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; LA64-NEXT: pcaddu18i $t8, %call36(bug)
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; LA64-NEXT: jr $t8
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; LA64-NEXT: .LBB0_4: # %if.end3
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; LA64-NEXT: ret
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entry:
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%tobool.not = icmp eq i32 %flag, 0
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br i1 %tobool.not, label %if.end, label %if.then
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if.then: ; preds = %entry
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%0 = tail call i32 @llvm.loongarch.csrrd.w(i32 2)
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%or = or i32 %0, 1
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%1 = tail call i32 @llvm.loongarch.csrwr.w(i32 %or, i32 2)
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br label %if.end
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if.end: ; preds = %if.then, %entry
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%2 = tail call i32 @llvm.loongarch.csrrd.w(i32 2)
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%and = and i32 %2, 1
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%tobool1.not = icmp eq i32 %and, 0
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br i1 %tobool1.not, label %if.then2, label %if.end3
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if.then2: ; preds = %if.end
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tail call void @bug()
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br label %if.end3
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if.end3: ; preds = %if.then2, %if.end
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ret void
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}
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