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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
; RUN: llc -mtriple=riscv64 < %s | FileCheck %s
define i64 @fold_binop_into_select_0(i1 %c, i64 %x) {
; CHECK-LABEL: fold_binop_into_select_0:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: addi a1, a1, -2
; CHECK-NEXT: slli a0, a0, 63
; CHECK-NEXT: srai a0, a0, 63
; CHECK-NEXT: and a0, a0, a1
; CHECK-NEXT: ret
entry:
%select_ = select i1 %c, i64 %x, i64 2
%res = sub i64 %select_, 2
ret i64 %res
}
define i64 @fold_binop_into_select_1(i1 %c, i64 %x) {
; CHECK-LABEL: fold_binop_into_select_1:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: andi a0, a0, 1
; CHECK-NEXT: addi a1, a1, -2
; CHECK-NEXT: addi a0, a0, -1
; CHECK-NEXT: and a0, a0, a1
; CHECK-NEXT: ret
entry:
%select_ = select i1 %c, i64 2, i64 %x
%res = sub i64 %select_, 2
ret i64 %res
}
define i64 @fold_binop_into_select_2(i1 %c, i64 %x) {
; CHECK-LABEL: fold_binop_into_select_2:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: li a2, 2
; CHECK-NEXT: sub a2, a2, a1
; CHECK-NEXT: slli a0, a0, 63
; CHECK-NEXT: srai a0, a0, 63
; CHECK-NEXT: and a0, a0, a2
; CHECK-NEXT: ret
entry:
%select_ = select i1 %c, i64 %x, i64 2
%res = sub i64 2, %select_
ret i64 %res
}
define i64 @fold_binop_into_select_3(i1 %c, i64 %x) {
; CHECK-LABEL: fold_binop_into_select_3:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: andi a0, a0, 1
; CHECK-NEXT: li a2, 2
; CHECK-NEXT: sub a2, a2, a1
; CHECK-NEXT: addi a0, a0, -1
; CHECK-NEXT: and a0, a0, a2
; CHECK-NEXT: ret
entry:
%select_ = select i1 %c, i64 2, i64 %x
%res = sub i64 2, %select_
ret i64 %res
}
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