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[PowerPC] add more high latency opcodes for machinecombiner - NFC

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This commit is contained in:
Chen Zheng 2020-05-17 21:00:09 -04:00
parent 40620fb114
commit 159ec3f544
1 changed files with 28 additions and 0 deletions
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28
test/CodeGen/PowerPC/machine-combiner.ll
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@ -1,5 +1,6 @@
; RUN: llc -verify-machineinstrs -O3 -mcpu=pwr7 < %s | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-PWR
; RUN: llc -verify-machineinstrs -O3 -mcpu=a2q < %s | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-QPX
; RUN: llc -verify-machineinstrs -O3 -mcpu=pwr9 < %s | FileCheck %s -check-prefix=FIXPOINT
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
@ -185,4 +186,31 @@ define double @reassociate_muls_double(double %x0, double %x1, double %x2, doubl
ret double %t2
}
define i32 @reassociate_mullw(i32 %x0, i32 %x1, i32 %x2, i32 %x3) {
; FIXPOINT-LABEL: reassociate_mullw:
; FIXPOINT: # %bb.0:
; FIXPOINT: mullw 3, 3, 4
; FIXPOINT: mullw 3, 3, 5
; FIXPOINT: mullw 3, 3, 6
; FIXPOINT-NEXT: blr
%t0 = mul i32 %x0, %x1
%t1 = mul i32 %t0, %x2
%t2 = mul i32 %t1, %x3
ret i32 %t2
}
define i64 @reassociate_mulld(i64 %x0, i64 %x1, i64 %x2, i64 %x3) {
; FIXPOINT-LABEL: reassociate_mulld:
; FIXPOINT: # %bb.0:
; FIXPOINT: mulld 3, 3, 4
; FIXPOINT: mulld 3, 3, 5
; FIXPOINT: mulld 3, 3, 6
; FIXPOINT-NEXT: blr
%t0 = mul i64 %x0, %x1
%t1 = mul i64 %t0, %x2
%t2 = mul i64 %t1, %x3
ret i64 %t2
}