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We want to run the Machine Scheduler instead of the List Scheduler after RA. Checked with a performance run on a Power 9 machine with SPEC 2006 and while some benchmarks improved and others degraded the geomean was slightly improved with the Machine Scheduler. Differential Revision: https://reviews.llvm.org/D45265 llvm-svn: 336295
47 lines
1.6 KiB
LLVM
47 lines
1.6 KiB
LLVM
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s -check-prefix=COLDCC
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define signext i32 @caller(i32 signext %a, i32 signext %b, i32 signext %cold) {
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entry:
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%0 = tail call i32 asm "add $0, $1, $2", "=r,r,r,~{r14},~{r15},~{r16},~{r17},~{r18},~{r19},~{r20},~{r21},~{r22},~{r23},~{r24},~{r25},~{r26},~{r27},~{r28},~{r29},~{r30},~{r31}"(i32 %a, i32 %b)
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%mul = mul nsw i32 %0, %cold
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%tobool = icmp eq i32 %cold, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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%mul1 = mul nsw i32 %mul, %cold
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%mul2 = mul nsw i32 %b, %a
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%call = tail call coldcc signext i32 @callee(i32 signext %a, i32 signext %b)
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%add = add i32 %mul2, %a
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%add3 = add i32 %add, %mul
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%add4 = add i32 %add3, %mul1
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%add5 = add i32 %add4, %call
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br label %if.end
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if.end: ; preds = %entry, %if.then
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%f.0 = phi i32 [ %add5, %if.then ], [ %0, %entry ]
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ret i32 %f.0
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}
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define internal coldcc signext i32 @callee(i32 signext %a, i32 signext %b) local_unnamed_addr #0 {
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entry:
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; COLDCC: @callee
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; COLDCC: std 6, -8(1)
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; COLDCC: std 7, -16(1)
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; COLDCC: std 8, -24(1)
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; COLDCC: std 9, -32(1)
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; COLDCC: std 10, -40(1)
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; COLDCC: ld 10, -40(1)
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; COLDCC: ld 9, -32(1)
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; COLDCC: ld 8, -24(1)
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; COLDCC: ld 7, -16(1)
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; COLDCC: ld 6, -8(1)
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%0 = tail call i32 asm "add $0, $1, $2", "=r,r,r,~{r6},~{r7},~{r8},~{r9},~{r10}"(i32 %a, i32 %b)
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%mul = mul nsw i32 %a, 3
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%1 = mul i32 %b, -5
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%add = add i32 %1, %mul
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%sub = add i32 %add, %0
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ret i32 %sub
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}
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attributes #0 = { noinline }
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