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Differential D32776 Diff 110607 test/CodeGen/PowerPC/branch_coalesce.ll

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test/CodeGen/PowerPC/branch_coalesce.ll

1; RUN: llc -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs -enable-branch-coalesce=true < %s | FileCheck %s 1​; RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s
2; RUN: llc -mcpu=pwr8 -mtriple=powerpc64-unknown-linux-gnu -verify-machineinstrs -enable-branch-coalesce=true < %s | FileCheck %s 2​; RUN: llc -mcpu=pwr8 -mtriple=powerpc64-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s
kbartonUnsubmitted
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There is nothing specific to pwr8 in this patch so I think we're better to remove -mcpu=pwr8.

kbarton: There is nothing specific to pwr8 in this patch so I think we're better to remove -mcpu=pwr8.
3​; RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs -disable-ppc-branch-coalesce < %s | FileCheck --check-prefix=CHECK-NOCOALESCE %s
4​; RUN: llc -mcpu=pwr8 -mtriple=powerpc64-unknown-linux-gnu -verify-machineinstrs -disable-ppc-branch-coalesce < %s | FileCheck --check-prefix=CHECK-NOCOALESCE %s
3 5​
4; Function Attrs: nounwind 6​; Function Attrs: nounwind
5define double @testBranchCoal(double %a, double %b, double %c, i32 %x) { 7​define double @testBranchCoal(double %a, double %b, double %c, i32 %x) {
6entry: ​
7 %test = icmp eq i32 %x, 0 ​
8 %tmp1 = select i1 %test, double %a, double 2.000000e-03 ​
9 %tmp2 = select i1 %test, double %b, double 0.000000e+00 ​
10 %tmp3 = select i1 %test, double %c, double 5.000000e-03 ​
11 ​
12 %res1 = fadd double %tmp1, %tmp2 ​
13 %result = fadd double %res1, %tmp3 ​
14 ret double %result ​
15 8​
16; CHECK-LABEL: @testBranchCoal 9​; CHECK-LABEL: @testBranchCoal
17; CHECK: cmplwi [[CMPR:[0-7]+]], 6, 0 10​; CHECK: cmplwi [[CMPR:[0-7]+]], 6, 0
18; CHECK: beq [[CMPR]], .LBB[[LAB1:[0-9_]+]] 11​; CHECK: beq [[CMPR]], .LBB[[LAB1:[0-9_]+]]
19; CHECK-DAG: addis [[LD1REG:[0-9]+]], 2, .LCPI0_0@toc@ha 12​; CHECK-DAG: addis [[LD1REG:[0-9]+]], 2, .LCPI0_0@toc@ha
20; CHECK-DAG: addis [[LD2REG:[0-9]+]], 2, .LCPI0_1@toc@ha 13​; CHECK-DAG: addis [[LD2REG:[0-9]+]], 2, .LCPI0_1@toc@ha
21; CHECK-DAG: xxlxor 2, 2, 2 14​; CHECK-DAG: xxlxor 2, 2, 2
22; CHECK-NOT: beq 15​; CHECK-NOT: beq
23; CHECK-DAG: addi [[LD1BASE:[0-9]+]], [[LD1REG]] 16​; CHECK-DAG: addi [[LD1BASE:[0-9]+]], [[LD1REG]]
24; CHECK-DAG: addi [[LD2BASE:[0-9]+]], [[LD2REG]] 17​; CHECK-DAG: addi [[LD2BASE:[0-9]+]], [[LD2REG]]
25; CHECK-DAG: lxsdx 1, 0, [[LD1BASE]] 18​; CHECK-DAG: lxsdx 1, 0, [[LD1BASE]]
26; CHECK-DAG: lxsdx 3, 0, [[LD2BASE]] 19​; CHECK-DAG: lxsdx 3, 0, [[LD2BASE]]
27; CHECK: .LBB[[LAB1]] 20​; CHECK: .LBB[[LAB1]]
28; CHECK: xsadddp 0, 1, 2 21​; CHECK: xsadddp 0, 1, 2
29; CHECK: xsadddp 1, 0, 3 22​; CHECK: xsadddp 1, 0, 3
30; CHECK: blr 23​; CHECK: blr
24​
25​; CHECK-NOCOALESCE-LABEL: testBranchCoal:
26​; CHECK-NOCOALESCE: # BB#0: # %entry
27​; CHECK-NOCOALESCE-NEXT: cmplwi 0, 6, 0
28​; CHECK-NOCOALESCE-NEXT: bne 0, .LBB0_5
29​; CHECK-NOCOALESCE-NEXT: # BB#1: # %entry
30​; CHECK-NOCOALESCE-NEXT: bne 0, .LBB0_6
31​; CHECK-NOCOALESCE-NEXT: .LBB0_2: # %entry
32​; CHECK-NOCOALESCE-NEXT: beq 0, .LBB0_4
33​; CHECK-NOCOALESCE-NEXT: .LBB0_3: # %entry
34​; CHECK-NOCOALESCE-NEXT: addis 3, 2, .LCPI0_1@toc@ha
35​; CHECK-NOCOALESCE-NEXT: addi 3, 3, .LCPI0_1@toc@l
36​; CHECK-NOCOALESCE-NEXT: lxsdx 3, 0, 3
37​; CHECK-NOCOALESCE-NEXT: .LBB0_4: # %entry
38​; CHECK-NOCOALESCE-NEXT: xsadddp 0, 1, 2
39​; CHECK-NOCOALESCE-NEXT: xsadddp 1, 0, 3
40​; CHECK-NOCOALESCE-NEXT: blr
41​; CHECK-NOCOALESCE-NEXT: .LBB0_5: # %entry
42​; CHECK-NOCOALESCE-NEXT: addis 3, 2, .LCPI0_0@toc@ha
43​; CHECK-NOCOALESCE-NEXT: addi 3, 3, .LCPI0_0@toc@l
44​; CHECK-NOCOALESCE-NEXT: lxsdx 1, 0, 3
45​; CHECK-NOCOALESCE-NEXT: beq 0, .LBB0_2
46​; CHECK-NOCOALESCE-NEXT: .LBB0_6: # %entry
47​; CHECK-NOCOALESCE-NEXT: xxlxor 2, 2, 2
48​; CHECK-NOCOALESCE-NEXT: bne 0, .LBB0_3
49​; CHECK-NOCOALESCE-NEXT: b .LBB0_4
50​ entry:
51​
52​ %test = icmp eq i32 %x, 0
53​ %tmp1 = select i1 %test, double %a, double 2.000000e-03
54​ %tmp2 = select i1 %test, double %b, double 0.000000e+00
55​ %tmp3 = select i1 %test, double %c, double 5.000000e-03
56​
57​ %res1 = fadd double %tmp1, %tmp2
58​ %result = fadd double %res1, %tmp3
59​ ret double %result
31} 60​}