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clang-p2996/llvm/test/CodeGen/PowerPC/select_const.ll
Tony Jiang 438bf4a66b [PPC] Heuristic to choose between a X-Form VSX ld/st vs a X-Form FP ld/st. 
The VSX versions have the advantage of a full 64-register target whereas the FP
ones have the advantage of lower latency and higher throughput. So what we’re
after is using the faster instructions in low register pressure situations and
using the larger register file in high register pressure situations.

The heuristic chooses between the following 7 pairs of instructions.
PPC::LXSSPX vs PPC::LFSX
PPC::LXSDX vs PPC::LFDX
PPC::STXSSPX vs PPC::STFSX
PPC::STXSDX vs PPC::STFDX
PPC::LXSIWAX vs PPC::LFIWAX
PPC::LXSIWZX vs PPC::LFIWZX
PPC::STXSIWX vs PPC::STFIWX

Differential Revision: https://reviews.llvm.org/D38486

llvm-svn: 318651
2017-11-20 14:38:30 +00:00

790 lines
21 KiB
LLVM
Raw Blame History

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=powerpc64le-unknown-unknown -verify-machineinstrs -mattr=+isel | FileCheck %s --check-prefix=ALL --check-prefix=ISEL
; RUN: llc < %s -mtriple=powerpc64le-unknown-unknown -verify-machineinstrs -mattr=-isel | FileCheck %s --check-prefix=ALL --check-prefix=NO_ISEL
; Select of constants: control flow / conditional moves can always be replaced by logic+math (but may not be worth it?).
; Test the zeroext/signext variants of each pattern to see if that makes a difference.
; select Cond, 0, 1 --> zext (!Cond)
define i32 @select_0_or_1(i1 %cond) {
; ALL-LABEL: select_0_or_1:
; ALL: # BB#0:
; ALL-NEXT: not 3, 3
; ALL-NEXT: clrldi 3, 3, 63
; ALL-NEXT: blr
%sel = select i1 %cond, i32 0, i32 1
ret i32 %sel
}
define i32 @select_0_or_1_zeroext(i1 zeroext %cond) {
; ALL-LABEL: select_0_or_1_zeroext:
; ALL: # BB#0:
; ALL-NEXT: xori 3, 3, 1
; ALL-NEXT: blr
%sel = select i1 %cond, i32 0, i32 1
ret i32 %sel
}
define i32 @select_0_or_1_signext(i1 signext %cond) {
; ALL-LABEL: select_0_or_1_signext:
; ALL: # BB#0:
; ALL-NEXT: not 3, 3
; ALL-NEXT: clrldi 3, 3, 63
; ALL-NEXT: blr
%sel = select i1 %cond, i32 0, i32 1
ret i32 %sel
}
; select Cond, 1, 0 --> zext (Cond)
define i32 @select_1_or_0(i1 %cond) {
; ALL-LABEL: select_1_or_0:
; ALL: # BB#0:
; ALL-NEXT: clrldi 3, 3, 63
; ALL-NEXT: blr
%sel = select i1 %cond, i32 1, i32 0
ret i32 %sel
}
define i32 @select_1_or_0_zeroext(i1 zeroext %cond) {
; ALL-LABEL: select_1_or_0_zeroext:
; ALL: # BB#0:
; ALL-NEXT: blr
%sel = select i1 %cond, i32 1, i32 0
ret i32 %sel
}
define i32 @select_1_or_0_signext(i1 signext %cond) {
; ALL-LABEL: select_1_or_0_signext:
; ALL: # BB#0:
; ALL-NEXT: clrldi 3, 3, 63
; ALL-NEXT: blr
%sel = select i1 %cond, i32 1, i32 0
ret i32 %sel
}
; select Cond, 0, -1 --> sext (!Cond)
define i32 @select_0_or_neg1(i1 %cond) {
; ISEL-LABEL: select_0_or_neg1:
; ISEL: # BB#0:
; ISEL-NEXT: li 4, 0
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: oris 3, 4, 65535
; ISEL-NEXT: ori 3, 3, 65535
; ISEL-NEXT: isel 3, 0, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: select_0_or_neg1:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: li 4, 0
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: oris 3, 4, 65535
; NO_ISEL-NEXT: ori 3, 3, 65535
; NO_ISEL-NEXT: bc 12, 1, .LBB6_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB6_1:
; NO_ISEL-NEXT: addi 3, 0, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i32 0, i32 -1
ret i32 %sel
}
define i32 @select_0_or_neg1_zeroext(i1 zeroext %cond) {
; ISEL-LABEL: select_0_or_neg1_zeroext:
; ISEL: # BB#0:
; ISEL-NEXT: li 4, 0
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: oris 3, 4, 65535
; ISEL-NEXT: ori 3, 3, 65535
; ISEL-NEXT: isel 3, 0, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: select_0_or_neg1_zeroext:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: li 4, 0
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: oris 3, 4, 65535
; NO_ISEL-NEXT: ori 3, 3, 65535
; NO_ISEL-NEXT: bc 12, 1, .LBB7_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB7_1:
; NO_ISEL-NEXT: addi 3, 0, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i32 0, i32 -1
ret i32 %sel
}
define i32 @select_0_or_neg1_signext(i1 signext %cond) {
; ISEL-LABEL: select_0_or_neg1_signext:
; ISEL: # BB#0:
; ISEL-NEXT: li 4, 0
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: oris 3, 4, 65535
; ISEL-NEXT: ori 3, 3, 65535
; ISEL-NEXT: isel 3, 0, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: select_0_or_neg1_signext:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: li 4, 0
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: oris 3, 4, 65535
; NO_ISEL-NEXT: ori 3, 3, 65535
; NO_ISEL-NEXT: bc 12, 1, .LBB8_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB8_1:
; NO_ISEL-NEXT: addi 3, 0, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i32 0, i32 -1
ret i32 %sel
}
; select Cond, -1, 0 --> sext (Cond)
define i32 @select_neg1_or_0(i1 %cond) {
; ISEL-LABEL: select_neg1_or_0:
; ISEL: # BB#0:
; ISEL-NEXT: li 4, 0
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: oris 3, 4, 65535
; ISEL-NEXT: ori 3, 3, 65535
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: select_neg1_or_0:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: li 4, 0
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: oris 3, 4, 65535
; NO_ISEL-NEXT: ori 3, 3, 65535
; NO_ISEL-NEXT: bclr 12, 1, 0
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i32 -1, i32 0
ret i32 %sel
}
define i32 @select_neg1_or_0_zeroext(i1 zeroext %cond) {
; ISEL-LABEL: select_neg1_or_0_zeroext:
; ISEL: # BB#0:
; ISEL-NEXT: li 4, 0
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: oris 3, 4, 65535
; ISEL-NEXT: ori 3, 3, 65535
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: select_neg1_or_0_zeroext:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: li 4, 0
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: oris 3, 4, 65535
; NO_ISEL-NEXT: ori 3, 3, 65535
; NO_ISEL-NEXT: bclr 12, 1, 0
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i32 -1, i32 0
ret i32 %sel
}
define i32 @select_neg1_or_0_signext(i1 signext %cond) {
; ISEL-LABEL: select_neg1_or_0_signext:
; ISEL: # BB#0:
; ISEL-NEXT: li 4, 0
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: oris 3, 4, 65535
; ISEL-NEXT: ori 3, 3, 65535
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: select_neg1_or_0_signext:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: li 4, 0
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: oris 3, 4, 65535
; NO_ISEL-NEXT: ori 3, 3, 65535
; NO_ISEL-NEXT: bclr 12, 1, 0
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i32 -1, i32 0
ret i32 %sel
}
; select Cond, C+1, C --> add (zext Cond), C
define i32 @select_Cplus1_C(i1 %cond) {
; ALL-LABEL: select_Cplus1_C:
; ALL: # BB#0:
; ALL-NEXT: clrldi 3, 3, 63
; ALL-NEXT: addi 3, 3, 41
; ALL-NEXT: blr
%sel = select i1 %cond, i32 42, i32 41
ret i32 %sel
}
define i32 @select_Cplus1_C_zeroext(i1 zeroext %cond) {
; ALL-LABEL: select_Cplus1_C_zeroext:
; ALL: # BB#0:
; ALL-NEXT: addi 3, 3, 41
; ALL-NEXT: blr
%sel = select i1 %cond, i32 42, i32 41
ret i32 %sel
}
define i32 @select_Cplus1_C_signext(i1 signext %cond) {
; ALL-LABEL: select_Cplus1_C_signext:
; ALL: # BB#0:
; ALL-NEXT: subfic 3, 3, 41
; ALL-NEXT: blr
%sel = select i1 %cond, i32 42, i32 41
ret i32 %sel
}
; select Cond, C, C+1 --> add (sext Cond), C
define i32 @select_C_Cplus1(i1 %cond) {
; ALL-LABEL: select_C_Cplus1:
; ALL: # BB#0:
; ALL-NEXT: clrldi 3, 3, 63
; ALL-NEXT: subfic 3, 3, 42
; ALL-NEXT: blr
%sel = select i1 %cond, i32 41, i32 42
ret i32 %sel
}
define i32 @select_C_Cplus1_zeroext(i1 zeroext %cond) {
; ALL-LABEL: select_C_Cplus1_zeroext:
; ALL: # BB#0:
; ALL-NEXT: subfic 3, 3, 42
; ALL-NEXT: blr
%sel = select i1 %cond, i32 41, i32 42
ret i32 %sel
}
define i32 @select_C_Cplus1_signext(i1 signext %cond) {
; ALL-LABEL: select_C_Cplus1_signext:
; ALL: # BB#0:
; ALL-NEXT: addi 3, 3, 42
; ALL-NEXT: blr
%sel = select i1 %cond, i32 41, i32 42
ret i32 %sel
}
; In general, select of 2 constants could be:
; select Cond, C1, C2 --> add (mul (zext Cond), C1-C2), C2 --> add (and (sext Cond), C1-C2), C2
define i32 @select_C1_C2(i1 %cond) {
; ISEL-LABEL: select_C1_C2:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: li 4, 421
; ISEL-NEXT: li 3, 42
; ISEL-NEXT: isel 3, 4, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: select_C1_C2:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: li 4, 421
; NO_ISEL-NEXT: li 3, 42
; NO_ISEL-NEXT: bc 12, 1, .LBB18_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB18_1:
; NO_ISEL-NEXT: addi 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i32 421, i32 42
ret i32 %sel
}
define i32 @select_C1_C2_zeroext(i1 zeroext %cond) {
; ISEL-LABEL: select_C1_C2_zeroext:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: li 4, 421
; ISEL-NEXT: li 3, 42
; ISEL-NEXT: isel 3, 4, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: select_C1_C2_zeroext:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: li 4, 421
; NO_ISEL-NEXT: li 3, 42
; NO_ISEL-NEXT: bc 12, 1, .LBB19_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB19_1:
; NO_ISEL-NEXT: addi 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i32 421, i32 42
ret i32 %sel
}
define i32 @select_C1_C2_signext(i1 signext %cond) {
; ISEL-LABEL: select_C1_C2_signext:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: li 4, 421
; ISEL-NEXT: li 3, 42
; ISEL-NEXT: isel 3, 4, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: select_C1_C2_signext:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: li 4, 421
; NO_ISEL-NEXT: li 3, 42
; NO_ISEL-NEXT: bc 12, 1, .LBB20_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB20_1:
; NO_ISEL-NEXT: addi 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i32 421, i32 42
ret i32 %sel
}
; A binary operator with constant after the select should always get folded into the select.
define i8 @sel_constants_add_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_add_constant:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: li 4, 1
; ISEL-NEXT: li 3, 28
; ISEL-NEXT: isel 3, 4, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_add_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: li 4, 1
; NO_ISEL-NEXT: li 3, 28
; NO_ISEL-NEXT: bc 12, 1, .LBB21_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB21_1:
; NO_ISEL-NEXT: addi 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = add i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_sub_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_sub_constant:
; ISEL: # BB#0:
; ISEL-NEXT: li 4, 0
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: oris 3, 4, 65535
; ISEL-NEXT: li 4, 18
; ISEL-NEXT: ori 3, 3, 65527
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_sub_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: li 4, 0
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: oris 3, 4, 65535
; NO_ISEL-NEXT: li 4, 18
; NO_ISEL-NEXT: ori 3, 3, 65527
; NO_ISEL-NEXT: bclr 12, 1, 0
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = sub i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_mul_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_mul_constant:
; ISEL: # BB#0:
; ISEL-NEXT: lis 4, 16383
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: ori 3, 4, 65531
; ISEL-NEXT: li 4, 115
; ISEL-NEXT: sldi 3, 3, 2
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_mul_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: lis 4, 16383
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: ori 3, 4, 65531
; NO_ISEL-NEXT: li 4, 115
; NO_ISEL-NEXT: sldi 3, 3, 2
; NO_ISEL-NEXT: bclr 12, 1, 0
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = mul i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_sdiv_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_sdiv_constant:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: li 3, 4
; ISEL-NEXT: isel 3, 0, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_sdiv_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: li 3, 4
; NO_ISEL-NEXT: bc 12, 1, .LBB24_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB24_1:
; NO_ISEL-NEXT: addi 3, 0, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = sdiv i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_udiv_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_udiv_constant:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: li 4, 50
; ISEL-NEXT: li 3, 4
; ISEL-NEXT: isel 3, 4, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_udiv_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: li 4, 50
; NO_ISEL-NEXT: li 3, 4
; NO_ISEL-NEXT: bc 12, 1, .LBB25_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB25_1:
; NO_ISEL-NEXT: addi 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = udiv i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_srem_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_srem_constant:
; ISEL: # BB#0:
; ISEL-NEXT: lis 4, 16383
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: ori 3, 4, 65535
; ISEL-NEXT: li 4, 3
; ISEL-NEXT: sldi 3, 3, 2
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_srem_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: lis 4, 16383
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: ori 3, 4, 65535
; NO_ISEL-NEXT: li 4, 3
; NO_ISEL-NEXT: sldi 3, 3, 2
; NO_ISEL-NEXT: bclr 12, 1, 0
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = srem i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_urem_constant(i1 %cond) {
; ALL-LABEL: sel_constants_urem_constant:
; ALL: # BB#0:
; ALL-NEXT: rlwinm 3, 3, 0, 31, 31
; ALL-NEXT: subfic 3, 3, 3
; ALL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = urem i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_and_constant(i1 %cond) {
; ALL-LABEL: sel_constants_and_constant:
; ALL: # BB#0:
; ALL-NEXT: rlwinm 3, 3, 0, 31, 31
; ALL-NEXT: subfic 3, 3, 5
; ALL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = and i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_or_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_or_constant:
; ISEL: # BB#0:
; ISEL-NEXT: li 4, 0
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: oris 3, 4, 65535
; ISEL-NEXT: li 4, 23
; ISEL-NEXT: ori 3, 3, 65533
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_or_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: li 4, 0
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: oris 3, 4, 65535
; NO_ISEL-NEXT: li 4, 23
; NO_ISEL-NEXT: ori 3, 3, 65533
; NO_ISEL-NEXT: bclr 12, 1, 0
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = or i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_xor_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_xor_constant:
; ISEL: # BB#0:
; ISEL-NEXT: li 4, 0
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: oris 3, 4, 65535
; ISEL-NEXT: li 4, 18
; ISEL-NEXT: ori 3, 3, 65529
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_xor_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: li 4, 0
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: oris 3, 4, 65535
; NO_ISEL-NEXT: li 4, 18
; NO_ISEL-NEXT: ori 3, 3, 65529
; NO_ISEL-NEXT: bclr 12, 1, 0
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = xor i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_shl_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_shl_constant:
; ISEL: # BB#0:
; ISEL-NEXT: lis 5, 511
; ISEL-NEXT: lis 4, 2047
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: ori 3, 4, 65535
; ISEL-NEXT: ori 12, 5, 65535
; ISEL-NEXT: sldi 3, 3, 5
; ISEL-NEXT: sldi 4, 12, 7
; ISEL-NEXT: isel 3, 4, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_shl_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: lis 5, 511
; NO_ISEL-NEXT: lis 4, 2047
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: ori 3, 4, 65535
; NO_ISEL-NEXT: ori 12, 5, 65535
; NO_ISEL-NEXT: sldi 3, 3, 5
; NO_ISEL-NEXT: sldi 4, 12, 7
; NO_ISEL-NEXT: bc 12, 1, .LBB31_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB31_1:
; NO_ISEL-NEXT: addi 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = shl i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_lshr_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_lshr_constant:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: li 4, 7
; ISEL-NEXT: li 3, 0
; ISEL-NEXT: isel 3, 4, 3, 1
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_lshr_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: li 4, 7
; NO_ISEL-NEXT: li 3, 0
; NO_ISEL-NEXT: bc 12, 1, .LBB32_1
; NO_ISEL-NEXT: blr
; NO_ISEL-NEXT: .LBB32_1:
; NO_ISEL-NEXT: addi 3, 4, 0
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = lshr i8 %sel, 5
ret i8 %bo
}
define i8 @sel_constants_ashr_constant(i1 %cond) {
; ALL-LABEL: sel_constants_ashr_constant:
; ALL: # BB#0:
; ALL-NEXT: clrldi 3, 3, 63
; ALL-NEXT: neg 3, 3
; ALL-NEXT: blr
%sel = select i1 %cond, i8 -4, i8 23
%bo = ashr i8 %sel, 5
ret i8 %bo
}
define double @sel_constants_fadd_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_fadd_constant:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: addis 4, 2, .LCPI34_0@toc@ha
; ISEL-NEXT: addis 3, 2, .LCPI34_1@toc@ha
; ISEL-NEXT: addi 4, 4, .LCPI34_0@toc@l
; ISEL-NEXT: addi 3, 3, .LCPI34_1@toc@l
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: lxsdx 1, 0, 3
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_fadd_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: addis 4, 2, .LCPI34_0@toc@ha
; NO_ISEL-NEXT: addis 3, 2, .LCPI34_1@toc@ha
; NO_ISEL-NEXT: addi 4, 4, .LCPI34_0@toc@l
; NO_ISEL-NEXT: addi 3, 3, .LCPI34_1@toc@l
; NO_ISEL-NEXT: bc 12, 1, .LBB34_2
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: b .LBB34_2
; NO_ISEL-NEXT: .LBB34_2:
; NO_ISEL-NEXT: lxsdx 1, 0, 3
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, double -4.0, double 23.3
%bo = fadd double %sel, 5.1
ret double %bo
}
define double @sel_constants_fsub_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_fsub_constant:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: addis 4, 2, .LCPI35_0@toc@ha
; ISEL-NEXT: addis 3, 2, .LCPI35_1@toc@ha
; ISEL-NEXT: addi 4, 4, .LCPI35_0@toc@l
; ISEL-NEXT: addi 3, 3, .LCPI35_1@toc@l
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: lxsdx 1, 0, 3
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_fsub_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: addis 4, 2, .LCPI35_0@toc@ha
; NO_ISEL-NEXT: addis 3, 2, .LCPI35_1@toc@ha
; NO_ISEL-NEXT: addi 4, 4, .LCPI35_0@toc@l
; NO_ISEL-NEXT: addi 3, 3, .LCPI35_1@toc@l
; NO_ISEL-NEXT: bc 12, 1, .LBB35_2
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: b .LBB35_2
; NO_ISEL-NEXT: .LBB35_2:
; NO_ISEL-NEXT: lxsdx 1, 0, 3
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, double -4.0, double 23.3
%bo = fsub double %sel, 5.1
ret double %bo
}
define double @sel_constants_fmul_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_fmul_constant:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: addis 4, 2, .LCPI36_0@toc@ha
; ISEL-NEXT: addis 3, 2, .LCPI36_1@toc@ha
; ISEL-NEXT: addi 4, 4, .LCPI36_0@toc@l
; ISEL-NEXT: addi 3, 3, .LCPI36_1@toc@l
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: lxsdx 1, 0, 3
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_fmul_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: addis 4, 2, .LCPI36_0@toc@ha
; NO_ISEL-NEXT: addis 3, 2, .LCPI36_1@toc@ha
; NO_ISEL-NEXT: addi 4, 4, .LCPI36_0@toc@l
; NO_ISEL-NEXT: addi 3, 3, .LCPI36_1@toc@l
; NO_ISEL-NEXT: bc 12, 1, .LBB36_2
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: b .LBB36_2
; NO_ISEL-NEXT: .LBB36_2:
; NO_ISEL-NEXT: lxsdx 1, 0, 3
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, double -4.0, double 23.3
%bo = fmul double %sel, 5.1
ret double %bo
}
define double @sel_constants_fdiv_constant(i1 %cond) {
; ISEL-LABEL: sel_constants_fdiv_constant:
; ISEL: # BB#0:
; ISEL-NEXT: andi. 3, 3, 1
; ISEL-NEXT: addis 4, 2, .LCPI37_0@toc@ha
; ISEL-NEXT: addis 3, 2, .LCPI37_1@toc@ha
; ISEL-NEXT: addi 4, 4, .LCPI37_0@toc@l
; ISEL-NEXT: addi 3, 3, .LCPI37_1@toc@l
; ISEL-NEXT: isel 3, 3, 4, 1
; ISEL-NEXT: lxsdx 1, 0, 3
; ISEL-NEXT: blr
;
; NO_ISEL-LABEL: sel_constants_fdiv_constant:
; NO_ISEL: # BB#0:
; NO_ISEL-NEXT: andi. 3, 3, 1
; NO_ISEL-NEXT: addis 4, 2, .LCPI37_0@toc@ha
; NO_ISEL-NEXT: addis 3, 2, .LCPI37_1@toc@ha
; NO_ISEL-NEXT: addi 4, 4, .LCPI37_0@toc@l
; NO_ISEL-NEXT: addi 3, 3, .LCPI37_1@toc@l
; NO_ISEL-NEXT: bc 12, 1, .LBB37_2
; NO_ISEL-NEXT: # BB#1:
; NO_ISEL-NEXT: ori 3, 4, 0
; NO_ISEL-NEXT: b .LBB37_2
; NO_ISEL-NEXT: .LBB37_2:
; NO_ISEL-NEXT: lxsdx 1, 0, 3
; NO_ISEL-NEXT: blr
%sel = select i1 %cond, double -4.0, double 23.3
%bo = fdiv double %sel, 5.1
ret double %bo
}
define double @sel_constants_frem_constant(i1 %cond) {
; ALL-LABEL: sel_constants_frem_constant:
; ALL: # BB#0:
; ALL-NEXT: andi. 3, 3, 1
; ALL-NEXT: bc 12, 1, .LBB38_2
; ALL-NEXT: # BB#1:
; ALL-NEXT: addis 3, 2, .LCPI38_0@toc@ha
; ALL-NEXT: addi 3, 3, .LCPI38_0@toc@l
; ALL-NEXT: lxsdx 1, 0, 3
; ALL-NEXT: blr
; ALL-NEXT: .LBB38_2:
; ALL-NEXT: addis 3, 2, .LCPI38_1@toc@ha
; ALL-NEXT: addi 3, 3, .LCPI38_1@toc@l
; ALL-NEXT: lfsx 1, 0, 3
; ALL-NEXT: blr
%sel = select i1 %cond, double -4.0, double 23.3
%bo = frem double %sel, 5.1
ret double %bo
}
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