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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple=riscv32-unknown-elf -mattr=+zba %s -o - | FileCheck %s
declare i32 @callee2(i32, i32)
declare i32 @callee3(i32, i32, i32)
; Positive test
; The users of addi aren't more than 2
define void @t1(i32 %a, i32 %b, i32 %c) {
; CHECK-LABEL: t1:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: sh2add a2, a0, a2
; CHECK-NEXT: sh2add a0, a0, a1
; CHECK-NEXT: addi a0, a0, 42
; CHECK-NEXT: addi a1, a2, 42
; CHECK-NEXT: tail callee2
entry:
%shl = shl i32 %a, 2
%add = add nsw i32 %shl, 42
%add1 = add nsw i32 %add, %b
%add2 = add nsw i32 %add, %c
%call = tail call i32 @callee2(i32 %add1, i32 %add2)
ret void
}
; Negative test
; The users of addi are more than 2.
define void @t2(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) {
; CHECK-LABEL: t2:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: slli a0, a0, 2
; CHECK-NEXT: addi a4, a0, 42
; CHECK-NEXT: add a0, a4, a1
; CHECK-NEXT: add a1, a4, a2
; CHECK-NEXT: add a2, a4, a3
; CHECK-NEXT: tail callee3
entry:
%shl = shl i32 %a, 2
%add = add nsw i32 %shl, 42
%add1 = add nsw i32 %add, %b
%add2 = add nsw i32 %add, %c
%add3 = add nsw i32 %add, %d
%call = tail call i32 @callee3(i32 %add1, i32 %add2, i32 %add3)
ret void
}
; Negative test
; shl doesn't have one use.
define void @t3(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: t3:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: slli a4, a0, 2
; CHECK-NEXT: addi a5, a4, 45
; CHECK-NEXT: add a4, a5, a1
; CHECK-NEXT: add a1, a5, a2
; CHECK-NEXT: sh2add a2, a0, a3
; CHECK-NEXT: mv a0, a4
; CHECK-NEXT: tail callee3
entry:
%shl = shl i32 %a, 2
%add = add nsw i32 %shl, 45
%add1 = add nsw i32 %add, %b
%add2 = add nsw i32 %add, %c
%add3 = add nsw i32 %shl, %d
%call = tail call i32 @callee3(i32 %add1, i32 %add2, i32 %add3)
ret void
}
; Negative test
; shift amount isn't 1, 2, or 3.
define void @t4(i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: t4:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: slli a0, a0, 4
; CHECK-NEXT: addi a3, a0, 45
; CHECK-NEXT: add a0, a3, a1
; CHECK-NEXT: add a1, a3, a2
; CHECK-NEXT: tail callee2
entry:
%shl = shl i32 %a, 4
%add = add nsw i32 %shl, 45
%add1 = add nsw i32 %add, %b
%add2 = add nsw i32 %add, %c
%call = tail call i32 @callee2(i32 %add1, i32 %add2)
ret void
}
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