File: gpr-vsr-spill.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (24 lines) | stat: -rw-r--r-- 1,110 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
; RUN: llc -verify-machineinstrs -mcpu=pwr9 -mtriple=powerpc64le-unknown-linux-gnu -ppc-enable-gpr-to-vsr-spills  < %s | FileCheck %s
define signext i32 @foo(i32 signext %a, i32 signext %b) {
entry:
  %cmp = icmp slt i32 %a, %b
  br i1 %cmp, label %if.then, label %if.end

if.then:                                          ; preds = %entry
  %0 = tail call i32 asm "add $0, $1, $2", "=r,r,r,~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15},~{r16},~{r17},~{r18},~{r19},~{r20},~{r21},~{r22},~{r23},~{r24},~{r25},~{r26},~{r27},~{r28},~{r29}"(i32 %a, i32 %b)
  %mul = mul nsw i32 %0, %a
  %add = add i32 %b, %a
  %tmp = add i32 %add, %mul
  br label %if.end

if.end:                                           ; preds = %if.then, %entry
  %e.0 = phi i32 [ %tmp, %if.then ], [ undef, %entry ]
  ret i32 %e.0
; CHECK: @foo
; CHECK: mr [[NEWREG:[0-9]+]], 3
; CHECK: mr [[REG1:[0-9]+]], 4
; CHECK: mtvsrd [[NEWREG2:[0-9]+]], 4
; CHECK: add {{[0-9]+}}, [[NEWREG]], [[REG1]]
; CHECK: mffprd [[REG2:[0-9]+]], [[NEWREG2]]
; CHECK: add {{[0-9]+}}, [[REG2]], [[NEWREG]]
}