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[MSP430] add tests for unwanted shift codegen; NFC (PR43542) 

llvm-svn: 373607
This commit is contained in:
Sanjay Patel 2019-10-03 14:54:03 +00:00
parent fc9104d42a
commit 38c265fe26
1 changed files with 61 additions and 0 deletions
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61
llvm/test/CodeGen/MSP430/selectcc.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=msp430-- < %s | FileCheck %s
define i16 @select_to_shifts_i16(i16 %a, i16 %b) {
; CHECK-LABEL: select_to_shifts_i16:
; CHECK: ; %bb.0:
; CHECK-NEXT: mov.b r12, r12
; CHECK-NEXT: swpb r12
; CHECK-NEXT: add r12, r12
; CHECK-NEXT: add r12, r12
; CHECK-NEXT: add r12, r12
; CHECK-NEXT: add r12, r12
; CHECK-NEXT: add r12, r12
; CHECK-NEXT: add r12, r12
; CHECK-NEXT: swpb r12
; CHECK-NEXT: sxt r12
; CHECK-NEXT: rra r12
; CHECK-NEXT: rra r12
; CHECK-NEXT: rra r12
; CHECK-NEXT: rra r12
; CHECK-NEXT: rra r12
; CHECK-NEXT: rra r12
; CHECK-NEXT: rra r12
; CHECK-NEXT: and r13, r12
; CHECK-NEXT: ret
%and = and i16 %a, 2
%tobool = icmp eq i16 %and, 0
%select = select i1 %tobool, i16 0, i16 %b
ret i16 %select
}
define i32 @select_to_shifts_i32(i32 %a, i32 %b) {
; CHECK-LABEL: select_to_shifts_i32:
; CHECK: ; %bb.0:
; CHECK-NEXT: mov r12, r13
; CHECK-NEXT: mov.b r13, r13
; CHECK-NEXT: swpb r13
; CHECK-NEXT: add r13, r13
; CHECK-NEXT: add r13, r13
; CHECK-NEXT: add r13, r13
; CHECK-NEXT: add r13, r13
; CHECK-NEXT: add r13, r13
; CHECK-NEXT: add r13, r13
; CHECK-NEXT: swpb r13
; CHECK-NEXT: sxt r13
; CHECK-NEXT: rra r13
; CHECK-NEXT: rra r13
; CHECK-NEXT: rra r13
; CHECK-NEXT: rra r13
; CHECK-NEXT: rra r13
; CHECK-NEXT: rra r13
; CHECK-NEXT: rra r13
; CHECK-NEXT: and r13, r14
; CHECK-NEXT: and r15, r13
; CHECK-NEXT: mov r14, r12
; CHECK-NEXT: ret
%and = and i32 %a, 2
%tobool = icmp eq i32 %and, 0
%select = select i1 %tobool, i32 0, i32 %b
ret i32 %select
}