mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-06 09:54:49 +00:00
Adds an instruction itinerary to all x86 instructions, giving each a default latency of 1, using the InstrItinClass IIC_DEFAULT. Sets specific latencies for Atom for the instructions in files X86InstrCMovSetCC.td, X86InstrArithmetic.td, X86InstrControl.td, and X86InstrShiftRotate.td. The Atom latencies for the remainder of the x86 instructions will be set in subsequent patches. Adds a test to verify that the scheduler is working. Also changes the scheduling preference to "Hybrid" for i386 Atom, while leaving x86_64 as ILP. Patch by Preston Gurd! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149558 91177308-0d34-0410-b5e6-96231b3b80d8
245 lines
6.5 KiB
LLVM
245 lines
6.5 KiB
LLVM
; RUN: llc < %s -mcpu=generic -march=x86-64 > %t
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; RUN: not grep and %t
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; RUN: not grep movz %t
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; RUN: not grep sar %t
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; RUN: not grep shl %t
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; RUN: grep add %t | count 1
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; RUN: grep inc %t | count 4
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; RUN: grep dec %t | count 2
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; RUN: grep lea %t | count 3
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; Optimize away zext-inreg and sext-inreg on the loop induction
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; variable using trip-count information.
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define void @count_up(double* %d, i64 %n) nounwind {
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entry:
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br label %loop
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loop:
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %loop ]
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%indvar.i8 = and i64 %indvar, 255
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%t0 = getelementptr double* %d, i64 %indvar.i8
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%t1 = load double* %t0
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%t2 = fmul double %t1, 0.1
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store double %t2, double* %t0
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%indvar.i24 = and i64 %indvar, 16777215
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%t3 = getelementptr double* %d, i64 %indvar.i24
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%t4 = load double* %t3
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%t5 = fmul double %t4, 2.3
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store double %t5, double* %t3
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%t6 = getelementptr double* %d, i64 %indvar
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%t7 = load double* %t6
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%t8 = fmul double %t7, 4.5
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store double %t8, double* %t6
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%indvar.next = add i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, 10
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br i1 %exitcond, label %return, label %loop
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return:
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ret void
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}
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define void @count_down(double* %d, i64 %n) nounwind {
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entry:
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br label %loop
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loop:
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%indvar = phi i64 [ 10, %entry ], [ %indvar.next, %loop ]
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%indvar.i8 = and i64 %indvar, 255
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%t0 = getelementptr double* %d, i64 %indvar.i8
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%t1 = load double* %t0
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%t2 = fmul double %t1, 0.1
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store double %t2, double* %t0
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%indvar.i24 = and i64 %indvar, 16777215
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%t3 = getelementptr double* %d, i64 %indvar.i24
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%t4 = load double* %t3
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%t5 = fmul double %t4, 2.3
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store double %t5, double* %t3
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%t6 = getelementptr double* %d, i64 %indvar
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%t7 = load double* %t6
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%t8 = fmul double %t7, 4.5
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store double %t8, double* %t6
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%indvar.next = sub i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, 0
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br i1 %exitcond, label %return, label %loop
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return:
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ret void
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}
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define void @count_up_signed(double* %d, i64 %n) nounwind {
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entry:
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br label %loop
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loop:
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %loop ]
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%s0 = shl i64 %indvar, 8
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%indvar.i8 = ashr i64 %s0, 8
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%t0 = getelementptr double* %d, i64 %indvar.i8
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%t1 = load double* %t0
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%t2 = fmul double %t1, 0.1
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store double %t2, double* %t0
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%s1 = shl i64 %indvar, 24
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%indvar.i24 = ashr i64 %s1, 24
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%t3 = getelementptr double* %d, i64 %indvar.i24
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%t4 = load double* %t3
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%t5 = fmul double %t4, 2.3
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store double %t5, double* %t3
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%t6 = getelementptr double* %d, i64 %indvar
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%t7 = load double* %t6
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%t8 = fmul double %t7, 4.5
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store double %t8, double* %t6
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%indvar.next = add i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, 10
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br i1 %exitcond, label %return, label %loop
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return:
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ret void
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}
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define void @count_down_signed(double* %d, i64 %n) nounwind {
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entry:
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br label %loop
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loop:
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%indvar = phi i64 [ 10, %entry ], [ %indvar.next, %loop ]
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%s0 = shl i64 %indvar, 8
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%indvar.i8 = ashr i64 %s0, 8
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%t0 = getelementptr double* %d, i64 %indvar.i8
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%t1 = load double* %t0
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%t2 = fmul double %t1, 0.1
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store double %t2, double* %t0
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%s1 = shl i64 %indvar, 24
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%indvar.i24 = ashr i64 %s1, 24
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%t3 = getelementptr double* %d, i64 %indvar.i24
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%t4 = load double* %t3
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%t5 = fmul double %t4, 2.3
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store double %t5, double* %t3
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%t6 = getelementptr double* %d, i64 %indvar
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%t7 = load double* %t6
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%t8 = fmul double %t7, 4.5
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store double %t8, double* %t6
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%indvar.next = sub i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, 0
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br i1 %exitcond, label %return, label %loop
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return:
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ret void
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}
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define void @another_count_up(double* %d, i64 %n) nounwind {
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entry:
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br label %loop
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loop:
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%indvar = phi i64 [ 18446744073709551615, %entry ], [ %indvar.next, %loop ]
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%indvar.i8 = and i64 %indvar, 255
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%t0 = getelementptr double* %d, i64 %indvar.i8
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%t1 = load double* %t0
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%t2 = fmul double %t1, 0.1
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store double %t2, double* %t0
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%indvar.i24 = and i64 %indvar, 16777215
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%t3 = getelementptr double* %d, i64 %indvar.i24
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%t4 = load double* %t3
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%t5 = fmul double %t4, 2.3
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store double %t5, double* %t3
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%t6 = getelementptr double* %d, i64 %indvar
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%t7 = load double* %t6
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%t8 = fmul double %t7, 4.5
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store double %t8, double* %t6
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%indvar.next = add i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, 0
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br i1 %exitcond, label %return, label %loop
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return:
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ret void
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}
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define void @another_count_down(double* %d, i64 %n) nounwind {
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entry:
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br label %loop
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loop:
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %loop ]
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%indvar.i8 = and i64 %indvar, 255
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%t0 = getelementptr double* %d, i64 %indvar.i8
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%t1 = load double* %t0
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%t2 = fmul double %t1, 0.1
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store double %t2, double* %t0
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%indvar.i24 = and i64 %indvar, 16777215
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%t3 = getelementptr double* %d, i64 %indvar.i24
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%t4 = load double* %t3
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%t5 = fdiv double %t4, 2.3
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store double %t5, double* %t3
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%t6 = getelementptr double* %d, i64 %indvar
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%t7 = load double* %t6
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%t8 = fmul double %t7, 4.5
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store double %t8, double* %t6
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%indvar.next = sub i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, 18446744073709551615
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br i1 %exitcond, label %return, label %loop
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return:
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ret void
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}
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define void @another_count_up_signed(double* %d, i64 %n) nounwind {
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entry:
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br label %loop
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loop:
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%indvar = phi i64 [ 18446744073709551615, %entry ], [ %indvar.next, %loop ]
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%s0 = shl i64 %indvar, 8
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%indvar.i8 = ashr i64 %s0, 8
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%t0 = getelementptr double* %d, i64 %indvar.i8
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%t1 = load double* %t0
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%t2 = fmul double %t1, 0.1
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store double %t2, double* %t0
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%s1 = shl i64 %indvar, 24
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%indvar.i24 = ashr i64 %s1, 24
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%t3 = getelementptr double* %d, i64 %indvar.i24
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%t4 = load double* %t3
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%t5 = fdiv double %t4, 2.3
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store double %t5, double* %t3
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%t6 = getelementptr double* %d, i64 %indvar
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%t7 = load double* %t6
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%t8 = fmul double %t7, 4.5
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store double %t8, double* %t6
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%indvar.next = add i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, 0
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br i1 %exitcond, label %return, label %loop
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return:
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ret void
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}
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define void @another_count_down_signed(double* %d, i64 %n) nounwind {
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entry:
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br label %loop
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loop:
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %loop ]
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%s0 = shl i64 %indvar, 8
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%indvar.i8 = ashr i64 %s0, 8
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%t0 = getelementptr double* %d, i64 %indvar.i8
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%t1 = load double* %t0
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%t2 = fmul double %t1, 0.1
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store double %t2, double* %t0
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%s1 = shl i64 %indvar, 24
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%indvar.i24 = ashr i64 %s1, 24
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%t3 = getelementptr double* %d, i64 %indvar.i24
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%t4 = load double* %t3
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%t5 = fdiv double %t4, 2.3
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store double %t5, double* %t3
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%t6 = getelementptr double* %d, i64 %indvar
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%t7 = load double* %t6
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%t8 = fmul double %t7, 4.5
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store double %t8, double* %t6
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%indvar.next = sub i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, 18446744073709551615
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br i1 %exitcond, label %return, label %loop
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return:
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ret void
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}
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