Remove the experimental (and unused) pre-ra splitting pass. Greedy regalloc can split live ranges.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133962 91177308-0d34-0410-b5e6-96231b3b80d8

9 files changed, 0 insertions, 334 deletions

diff --git a/test/CodeGen/X86/pre-split1.ll b/test/CodeGen/X86/pre-split1.ll
deleted file mode 100644
index b55bf57107..0000000000
--- a/test/CodeGen/X86/pre-split1.ll
+++ /dev/null
@@ -1,24 +0,0 @@
-; RUN: llc < %s -march=x86 -mattr=+sse2 -pre-alloc-split -regalloc=linearscan -stats |& \
-; RUN:   grep {pre-alloc-split} | grep {Number of intervals split} | grep 1
-; XFAIL: *
-
-define void @test(double* %P, i32 %cond) nounwind {
-entry:
-	%0 = load double* %P, align 8		; <double> [#uses=1]
-	%1 = fadd double %0, 4.000000e+00		; <double> [#uses=2]
-	%2 = icmp eq i32 %cond, 0		; <i1> [#uses=1]
-	br i1 %2, label %bb1, label %bb
-
-bb:		; preds = %entry
-	%3 = fadd double %1, 4.000000e+00		; <double> [#uses=1]
-	br label %bb1
-
-bb1:		; preds = %bb, %entry
-	%A.0 = phi double [ %3, %bb ], [ %1, %entry ]		; <double> [#uses=1]
-	%4 = fmul double %A.0, 4.000000e+00		; <double> [#uses=1]
-	%5 = tail call i32 (...)* @bar() nounwind		; <i32> [#uses=0]
-	store double %4, double* %P, align 8
-	ret void
-}
-
-declare i32 @bar(...)
diff --git a/test/CodeGen/X86/pre-split10.ll b/test/CodeGen/X86/pre-split10.ll
deleted file mode 100644
index 83c6450c0a..0000000000
--- a/test/CodeGen/X86/pre-split10.ll
+++ /dev/null
@@ -1,51 +0,0 @@
-; RUN: llc < %s -march=x86 -mattr=+sse2 -pre-alloc-split -regalloc=linearscan
-
-define i32 @main(i32 %argc, i8** %argv) nounwind {
-entry:
-	br label %bb14.i
-
-bb14.i:		; preds = %bb14.i, %entry
-	%i8.0.reg2mem.0.i = phi i32 [ 0, %entry ], [ %0, %bb14.i ]		; <i32> [#uses=1]
-	%0 = add i32 %i8.0.reg2mem.0.i, 1		; <i32> [#uses=2]
-	%1 = fadd double 0.000000e+00, 0.000000e+00		; <double> [#uses=1]
-	%2 = fadd double 0.000000e+00, 0.000000e+00		; <double> [#uses=1]
-	%3 = fadd double 0.000000e+00, 0.000000e+00		; <double> [#uses=1]
-	%exitcond75.i = icmp eq i32 %0, 32		; <i1> [#uses=1]
-	br i1 %exitcond75.i, label %bb24.i, label %bb14.i
-
-bb24.i:		; preds = %bb14.i
-	%4 = fdiv double 0.000000e+00, 0.000000e+00		; <double> [#uses=1]
-	%5 = fdiv double %1, 0.000000e+00		; <double> [#uses=1]
-	%6 = fdiv double %2, 0.000000e+00		; <double> [#uses=1]
-	%7 = fdiv double %3, 0.000000e+00		; <double> [#uses=1]
-	br label %bb31.i
-
-bb31.i:		; preds = %bb31.i, %bb24.i
-	%tmp.0.reg2mem.0.i = phi i32 [ 0, %bb24.i ], [ %indvar.next64.i, %bb31.i ]		; <i32> [#uses=1]
-	%indvar.next64.i = add i32 %tmp.0.reg2mem.0.i, 1		; <i32> [#uses=2]
-	%exitcond65.i = icmp eq i32 %indvar.next64.i, 64		; <i1> [#uses=1]
-	br i1 %exitcond65.i, label %bb33.i, label %bb31.i
-
-bb33.i:		; preds = %bb31.i
-	br label %bb35.preheader.i
-
-bb5.i.i:		; preds = %bb35.preheader.i
-	%8 = call double @floor(double 0.000000e+00) nounwind readnone		; <double> [#uses=0]
-	br label %bb7.i.i
-
-bb7.i.i:		; preds = %bb35.preheader.i, %bb5.i.i
-	br label %bb35.preheader.i
-
-bb35.preheader.i:		; preds = %bb7.i.i, %bb33.i
-	%9 = fsub double 0.000000e+00, %4		; <double> [#uses=1]
-	store double %9, double* null, align 8
-	%10 = fsub double 0.000000e+00, %5		; <double> [#uses=1]
-	store double %10, double* null, align 8
-	%11 = fsub double 0.000000e+00, %6		; <double> [#uses=1]
-	store double %11, double* null, align 8
-	%12 = fsub double 0.000000e+00, %7		; <double> [#uses=1]
-	store double %12, double* null, align 8
-	br i1 false, label %bb7.i.i, label %bb5.i.i
-}
-
-declare double @floor(double) nounwind readnone
diff --git a/test/CodeGen/X86/pre-split11.ll b/test/CodeGen/X86/pre-split11.ll
deleted file mode 100644
index 3d549f9111..0000000000
--- a/test/CodeGen/X86/pre-split11.ll
+++ /dev/null
@@ -1,34 +0,0 @@
-; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+sse2 -pre-alloc-split -regalloc=linearscan | FileCheck %s
-
-@.str = private constant [28 x i8] c"\0A\0ADOUBLE            D = %f\0A\00", align 1 ; <[28 x i8]*> [#uses=1]
-@.str1 = private constant [37 x i8] c"double to long    l1 = %ld\09\09(0x%lx)\0A\00", align 8 ; <[37 x i8]*> [#uses=1]
-@.str2 = private constant [35 x i8] c"double to uint   ui1 = %u\09\09(0x%x)\0A\00", align 8 ; <[35 x i8]*> [#uses=1]
-@.str3 = private constant [37 x i8] c"double to ulong  ul1 = %lu\09\09(0x%lx)\0A\00", align 8 ; <[37 x i8]*> [#uses=1]
-
-define i32 @main(i32 %argc, i8** nocapture %argv) nounwind ssp {
-; CHECK: movsd %xmm0, (%rsp)
-entry:
-  %0 = icmp sgt i32 %argc, 4                      ; <i1> [#uses=1]
-  br i1 %0, label %bb, label %bb2
-
-bb:                                               ; preds = %entry
-  %1 = getelementptr inbounds i8** %argv, i64 4   ; <i8**> [#uses=1]
-  %2 = load i8** %1, align 8                      ; <i8*> [#uses=1]
-  %3 = tail call double @atof(i8* %2) nounwind    ; <double> [#uses=1]
-  br label %bb2
-
-bb2:                                              ; preds = %bb, %entry
-  %storemerge = phi double [ %3, %bb ], [ 2.000000e+00, %entry ] ; <double> [#uses=4]
-  %4 = fptoui double %storemerge to i32           ; <i32> [#uses=2]
-  %5 = fptoui double %storemerge to i64           ; <i64> [#uses=2]
-  %6 = fptosi double %storemerge to i64           ; <i64> [#uses=2]
-  %7 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([28 x i8]* @.str, i64 0, i64 0), double %storemerge) nounwind ; <i32> [#uses=0]
-  %8 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([37 x i8]* @.str1, i64 0, i64 0), i64 %6, i64 %6) nounwind ; <i32> [#uses=0]
-  %9 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([35 x i8]* @.str2, i64 0, i64 0), i32 %4, i32 %4) nounwind ; <i32> [#uses=0]
-  %10 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([37 x i8]* @.str3, i64 0, i64 0), i64 %5, i64 %5) nounwind ; <i32> [#uses=0]
-  ret i32 0
-}
-
-declare double @atof(i8* nocapture) nounwind readonly
-
-declare i32 @printf(i8* nocapture, ...) nounwind
diff --git a/test/CodeGen/X86/pre-split4.ll b/test/CodeGen/X86/pre-split4.ll
deleted file mode 100644
index 37d1ac6301..0000000000
--- a/test/CodeGen/X86/pre-split4.ll
+++ /dev/null
@@ -1,26 +0,0 @@
-; RUN: llc < %s -march=x86 -mattr=+sse2 -pre-alloc-split -regalloc=linearscan -stats |& \
-; RUN:   grep {pre-alloc-split} | grep {Number of intervals split} | grep 2
-
-define i32 @main(i32 %argc, i8** %argv) nounwind {
-entry:
-	br label %bb
-
-bb:		; preds = %bb, %entry
-	%k.0.reg2mem.0 = phi double [ 1.000000e+00, %entry ], [ %6, %bb ]		; <double> [#uses=2]
-	%Flint.0.reg2mem.0 = phi double [ 0.000000e+00, %entry ], [ %5, %bb ]		; <double> [#uses=1]
-	%twoThrd.0.reg2mem.0 = phi double [ 0.000000e+00, %entry ], [ %1, %bb ]		; <double> [#uses=1]
-	%0 = tail call double @llvm.pow.f64(double 0x3FE5555555555555, double 0.000000e+00)		; <double> [#uses=1]
-	%1 = fadd double %0, %twoThrd.0.reg2mem.0		; <double> [#uses=1]
-	%2 = tail call double @sin(double %k.0.reg2mem.0) nounwind readonly		; <double> [#uses=1]
-	%3 = fmul double 0.000000e+00, %2		; <double> [#uses=1]
-	%4 = fdiv double 1.000000e+00, %3		; <double> [#uses=1]
-        store double %Flint.0.reg2mem.0, double* null
-        store double %twoThrd.0.reg2mem.0, double* null
-	%5 = fadd double %4, %Flint.0.reg2mem.0		; <double> [#uses=1]
-	%6 = fadd double %k.0.reg2mem.0, 1.000000e+00		; <double> [#uses=1]
-	br label %bb
-}
-
-declare double @llvm.pow.f64(double, double) nounwind readonly
-
-declare double @sin(double) nounwind readonly
diff --git a/test/CodeGen/X86/pre-split5.ll b/test/CodeGen/X86/pre-split5.ll
deleted file mode 100644
index 9f41f24c73..0000000000
--- a/test/CodeGen/X86/pre-split5.ll
+++ /dev/null
@@ -1,56 +0,0 @@
-; RUN: llc < %s -march=x86 -mattr=+sse2 -pre-alloc-split -regalloc=linearscan
-
-target triple = "i386-apple-darwin9.5"
-	%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
-	%struct.__sFILEX = type opaque
-	%struct.__sbuf = type { i8*, i32 }
-@"\01LC1" = external constant [48 x i8]		; <[48 x i8]*> [#uses=1]
-
-define i32 @main() nounwind {
-entry:
-	br label %bb5.us
-
-bb5.us:		; preds = %bb8.split, %bb5.us, %entry
-	%i.0.reg2mem.0.ph = phi i32 [ 0, %entry ], [ %indvar.next53, %bb8.split ], [ %i.0.reg2mem.0.ph, %bb5.us ]		; <i32> [#uses=2]
-	%j.0.reg2mem.0.us = phi i32 [ %indvar.next47, %bb5.us ], [ 0, %bb8.split ], [ 0, %entry ]		; <i32> [#uses=1]
-	%indvar.next47 = add i32 %j.0.reg2mem.0.us, 1		; <i32> [#uses=2]
-	%exitcond48 = icmp eq i32 %indvar.next47, 256		; <i1> [#uses=1]
-	br i1 %exitcond48, label %bb8.split, label %bb5.us
-
-bb8.split:		; preds = %bb5.us
-	%indvar.next53 = add i32 %i.0.reg2mem.0.ph, 1		; <i32> [#uses=2]
-	%exitcond54 = icmp eq i32 %indvar.next53, 256		; <i1> [#uses=1]
-	br i1 %exitcond54, label %bb11, label %bb5.us
-
-bb11:		; preds = %bb11, %bb8.split
-	%i.1.reg2mem.0 = phi i32 [ %indvar.next44, %bb11 ], [ 0, %bb8.split ]		; <i32> [#uses=1]
-	%indvar.next44 = add i32 %i.1.reg2mem.0, 1		; <i32> [#uses=2]
-	%exitcond45 = icmp eq i32 %indvar.next44, 63		; <i1> [#uses=1]
-	br i1 %exitcond45, label %bb14, label %bb11
-
-bb14:		; preds = %bb14, %bb11
-	%indvar = phi i32 [ %indvar.next40, %bb14 ], [ 0, %bb11 ]		; <i32> [#uses=1]
-	%indvar.next40 = add i32 %indvar, 1		; <i32> [#uses=2]
-	%exitcond41 = icmp eq i32 %indvar.next40, 32768		; <i1> [#uses=1]
-	br i1 %exitcond41, label %bb28, label %bb14
-
-bb28:		; preds = %bb14
-	%0 = fdiv double 2.550000e+02, 0.000000e+00		; <double> [#uses=1]
-	br label %bb30
-
-bb30:		; preds = %bb36, %bb28
-	%m.1.reg2mem.0 = phi i32 [ %m.0, %bb36 ], [ 0, %bb28 ]		; <i32> [#uses=1]
-	%1 = fmul double 0.000000e+00, %0		; <double> [#uses=1]
-	%2 = fptosi double %1 to i32		; <i32> [#uses=1]
-	br i1 false, label %bb36, label %bb35
-
-bb35:		; preds = %bb30
-	%3 = tail call i32 (%struct.FILE*, i8*, ...)* @fprintf(%struct.FILE* null, i8* getelementptr ([48 x i8]* @"\01LC1", i32 0, i32 0), i32 0, i32 0, i32 0, i32 %2) nounwind		; <i32> [#uses=0]
-	br label %bb36
-
-bb36:		; preds = %bb35, %bb30
-	%m.0 = phi i32 [ 0, %bb35 ], [ %m.1.reg2mem.0, %bb30 ]		; <i32> [#uses=1]
-	br label %bb30
-}
-
-declare i32 @fprintf(%struct.FILE*, i8*, ...) nounwind
diff --git a/test/CodeGen/X86/pre-split6.ll b/test/CodeGen/X86/pre-split6.ll
deleted file mode 100644
index d8f274db2c..0000000000
--- a/test/CodeGen/X86/pre-split6.ll
+++ /dev/null
@@ -1,36 +0,0 @@
-; RUN: llc < %s -mtriple=i386-apple-darwin -mattr=+sse2 -pre-alloc-split -regalloc=linearscan | grep {divsd	24} | count 1
-
-@current_surfaces.b = external global i1		; <i1*> [#uses=1]
-
-declare double @sin(double) nounwind readonly
-
-declare double @asin(double) nounwind readonly
-
-define fastcc void @trace_line(i32 %line) nounwind {
-entry:
-	%.b3 = load i1* @current_surfaces.b		; <i1> [#uses=1]
-	br i1 %.b3, label %bb.nph, label %return
-
-bb.nph:		; preds = %entry
-	%0 = load double* null, align 8		; <double> [#uses=1]
-	%1 = load double* null, align 8		; <double> [#uses=2]
-	%2 = fcmp une double %0, 0.000000e+00		; <i1> [#uses=1]
-	br i1 %2, label %bb9.i, label %bb13.i
-
-bb9.i:		; preds = %bb.nph
-	%3 = tail call double @asin(double 0.000000e+00) nounwind readonly		; <double> [#uses=0]
-	%4 = fdiv double 1.000000e+00, %1		; <double> [#uses=1]
-	%5 = fmul double %4, 0.000000e+00		; <double> [#uses=1]
-	%6 = tail call double @asin(double %5) nounwind readonly		; <double> [#uses=0]
-	unreachable
-
-bb13.i:		; preds = %bb.nph
-	%7 = fdiv double 1.000000e+00, %1		; <double> [#uses=1]
-	%8 = tail call double @sin(double 0.000000e+00) nounwind readonly		; <double> [#uses=1]
-	%9 = fmul double %7, %8		; <double> [#uses=1]
-	%10 = tail call double @asin(double %9) nounwind readonly		; <double> [#uses=0]
-	unreachable
-
-return:		; preds = %entry
-	ret void
-}
diff --git a/test/CodeGen/X86/pre-split7.ll b/test/CodeGen/X86/pre-split7.ll
deleted file mode 100644
index 8c93faac67..0000000000
--- a/test/CodeGen/X86/pre-split7.ll
+++ /dev/null
@@ -1,34 +0,0 @@
-; RUN: llc < %s -march=x86 -mattr=+sse2 -pre-alloc-split -regalloc=linearscan
-
-@object_distance = external global double, align 8		; <double*> [#uses=1]
-@axis_slope_angle = external global double, align 8		; <double*> [#uses=1]
-@current_surfaces.b = external global i1		; <i1*> [#uses=1]
-
-declare double @sin(double) nounwind readonly
-
-declare double @asin(double) nounwind readonly
-
-declare double @tan(double) nounwind readonly
-
-define fastcc void @trace_line(i32 %line) nounwind {
-entry:
-	%.b3 = load i1* @current_surfaces.b		; <i1> [#uses=1]
-	br i1 %.b3, label %bb, label %return
-
-bb:		; preds = %bb, %entry
-	%0 = tail call double @asin(double 0.000000e+00) nounwind readonly		; <double> [#uses=1]
-	%1 = fadd double 0.000000e+00, %0		; <double> [#uses=2]
-	%2 = tail call double @asin(double 0.000000e+00) nounwind readonly		; <double> [#uses=1]
-	%3 = fsub double %1, %2		; <double> [#uses=2]
-	store double %3, double* @axis_slope_angle, align 8
-	%4 = fdiv double %1, 2.000000e+00		; <double> [#uses=1]
-	%5 = tail call double @sin(double %4) nounwind readonly		; <double> [#uses=1]
-	%6 = fmul double 0.000000e+00, %5		; <double> [#uses=1]
-	%7 = tail call double @tan(double %3) nounwind readonly		; <double> [#uses=0]
-	%8 = fadd double 0.000000e+00, %6		; <double> [#uses=1]
-	store double %8, double* @object_distance, align 8
-	br label %bb
-
-return:		; preds = %entry
-	ret void
-}
diff --git a/test/CodeGen/X86/pre-split8.ll b/test/CodeGen/X86/pre-split8.ll
deleted file mode 100644
index 7e6ad6e176..0000000000
--- a/test/CodeGen/X86/pre-split8.ll
+++ /dev/null
@@ -1,35 +0,0 @@
-; RUN: llc < %s -march=x86 -mattr=+sse2 -pre-alloc-split -regalloc=linearscan -stats |& \
-; RUN:   grep {pre-alloc-split} | grep {Number of intervals split} | grep 1
-
-@current_surfaces.b = external global i1		; <i1*> [#uses=1]
-
-declare double @asin(double) nounwind readonly
-
-declare double @tan(double) nounwind readonly
-
-define fastcc void @trace_line(i32 %line) nounwind {
-entry:
-	%.b3 = load i1* @current_surfaces.b		; <i1> [#uses=1]
-	br i1 %.b3, label %bb, label %return
-
-bb:		; preds = %bb9.i, %entry
-	%.rle4 = phi double [ %7, %bb9.i ], [ 0.000000e+00, %entry ]		; <double> [#uses=1]
-	%0 = load double* null, align 8		; <double> [#uses=3]
-	%1 = fcmp une double %0, 0.000000e+00		; <i1> [#uses=1]
-	br i1 %1, label %bb9.i, label %bb13.i
-
-bb9.i:		; preds = %bb
-	%2 = fsub double %.rle4, %0		; <double> [#uses=0]
-	%3 = tail call double @asin(double %.rle4) nounwind readonly		; <double> [#uses=0]
-	%4 = fmul double 0.000000e+00, %0		; <double> [#uses=1]
-	%5 = tail call double @tan(double 0.000000e+00) nounwind readonly		; <double> [#uses=0]
-	%6 = fmul double %4, 0.000000e+00		; <double> [#uses=1]
-	%7 = fadd double %6, 0.000000e+00		; <double> [#uses=1]
-	br i1 false, label %return, label %bb
-
-bb13.i:		; preds = %bb
-	unreachable
-
-return:		; preds = %bb9.i, %entry
-	ret void
-}
diff --git a/test/CodeGen/X86/pre-split9.ll b/test/CodeGen/X86/pre-split9.ll
deleted file mode 100644
index 951e6fb28a..0000000000
--- a/test/CodeGen/X86/pre-split9.ll
+++ /dev/null
@@ -1,38 +0,0 @@
-; RUN: llc < %s -march=x86 -mattr=+sse2 -pre-alloc-split -regalloc=linearscan -stats |& \
-; RUN:   grep {pre-alloc-split} | grep {Number of intervals split} | grep 1
-
-@current_surfaces.b = external global i1		; <i1*> [#uses=1]
-
-declare double @sin(double) nounwind readonly
-
-declare double @asin(double) nounwind readonly
-
-declare double @tan(double) nounwind readonly
-
-define fastcc void @trace_line(i32 %line) nounwind {
-entry:
-	%.b3 = load i1* @current_surfaces.b		; <i1> [#uses=1]
-	br i1 %.b3, label %bb, label %return
-
-bb:		; preds = %bb9.i, %entry
-	%.rle4 = phi double [ %8, %bb9.i ], [ 0.000000e+00, %entry ]		; <double> [#uses=1]
-	%0 = load double* null, align 8		; <double> [#uses=3]
-	%1 = fcmp une double %0, 0.000000e+00		; <i1> [#uses=1]
-	br i1 %1, label %bb9.i, label %bb13.i
-
-bb9.i:		; preds = %bb
-	%2 = fsub double %.rle4, %0		; <double> [#uses=0]
-	%3 = tail call double @asin(double %.rle4) nounwind readonly		; <double> [#uses=0]
-	%4 = tail call double @sin(double 0.000000e+00) nounwind readonly		; <double> [#uses=1]
-	%5 = fmul double %4, %0		; <double> [#uses=1]
-	%6 = tail call double @tan(double 0.000000e+00) nounwind readonly		; <double> [#uses=0]
-	%7 = fmul double %5, 0.000000e+00		; <double> [#uses=1]
-	%8 = fadd double %7, 0.000000e+00		; <double> [#uses=1]
-	br i1 false, label %return, label %bb
-
-bb13.i:		; preds = %bb
-	unreachable
-
-return:		; preds = %bb9.i, %entry
-	ret void
-}