derek.holloway
7502bf64a4
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87 lines
2.4 KiB
LLVM
87 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=riscv32-unknown-elf -mattr=+zba %s -o - | FileCheck %s
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declare i32 @callee2(i32, i32)
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declare i32 @callee3(i32, i32, i32)
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; Positive test
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; The users of addi aren't more than 2
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define void @t1(i32 %a, i32 %b, i32 %c) {
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; CHECK-LABEL: t1:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: sh2add a2, a0, a2
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; CHECK-NEXT: sh2add a0, a0, a1
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; CHECK-NEXT: addi a0, a0, 42
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; CHECK-NEXT: addi a1, a2, 42
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; CHECK-NEXT: tail callee2
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entry:
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%shl = shl i32 %a, 2
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%add = add nsw i32 %shl, 42
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%add1 = add nsw i32 %add, %b
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%add2 = add nsw i32 %add, %c
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%call = tail call i32 @callee2(i32 %add1, i32 %add2)
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ret void
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}
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; Negative test
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; The users of addi are more than 2.
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define void @t2(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) {
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; CHECK-LABEL: t2:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: slli a0, a0, 2
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; CHECK-NEXT: addi a4, a0, 42
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; CHECK-NEXT: add a0, a4, a1
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; CHECK-NEXT: add a1, a4, a2
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; CHECK-NEXT: add a2, a4, a3
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; CHECK-NEXT: tail callee3
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entry:
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%shl = shl i32 %a, 2
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%add = add nsw i32 %shl, 42
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%add1 = add nsw i32 %add, %b
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%add2 = add nsw i32 %add, %c
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%add3 = add nsw i32 %add, %d
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%call = tail call i32 @callee3(i32 %add1, i32 %add2, i32 %add3)
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ret void
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}
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; Negative test
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; shl doesn't have one use.
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define void @t3(i32 %a, i32 %b, i32 %c, i32 %d) {
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; CHECK-LABEL: t3:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: slli a4, a0, 2
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; CHECK-NEXT: addi a5, a4, 45
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; CHECK-NEXT: add a4, a5, a1
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; CHECK-NEXT: add a1, a5, a2
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; CHECK-NEXT: sh2add a2, a0, a3
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; CHECK-NEXT: mv a0, a4
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; CHECK-NEXT: tail callee3
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entry:
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%shl = shl i32 %a, 2
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%add = add nsw i32 %shl, 45
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%add1 = add nsw i32 %add, %b
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%add2 = add nsw i32 %add, %c
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%add3 = add nsw i32 %shl, %d
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%call = tail call i32 @callee3(i32 %add1, i32 %add2, i32 %add3)
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ret void
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}
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; Negative test
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; shift amount isn't 1, 2, or 3.
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define void @t4(i32 %a, i32 %b, i32 %c, i32 %d) {
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; CHECK-LABEL: t4:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: slli a0, a0, 4
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; CHECK-NEXT: addi a3, a0, 45
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; CHECK-NEXT: add a0, a3, a1
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; CHECK-NEXT: add a1, a3, a2
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; CHECK-NEXT: tail callee2
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entry:
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%shl = shl i32 %a, 4
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%add = add nsw i32 %shl, 45
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%add1 = add nsw i32 %add, %b
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%add2 = add nsw i32 %add, %c
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%call = tail call i32 @callee2(i32 %add1, i32 %add2)
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ret void
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}
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