[llvm] r318182 - Simplify irreducible loop metadata test code.
Hiroshi Yamauchi via llvm-commits
llvm-commits at lists.llvm.org
Tue Nov 14 11:48:59 PST 2017
Author: yamauchi
Date: Tue Nov 14 11:48:59 2017
New Revision: 318182
URL: http://llvm.org/viewvc/llvm-project?rev=318182&view=rev
Log:
Simplify irreducible loop metadata test code.
Summary:
Shorten the irreducible loop metadata test code by removing insignificant
instructions.
Reviewers: davidxl
Reviewed By: davidxl
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D40043
Modified:
llvm/trunk/test/Analysis/BlockFrequencyInfo/irreducible_pgo.ll
llvm/trunk/test/Transforms/PGOProfile/irreducible.ll
Modified: llvm/trunk/test/Analysis/BlockFrequencyInfo/irreducible_pgo.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/BlockFrequencyInfo/irreducible_pgo.ll?rev=318182&r1=318181&r2=318182&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/BlockFrequencyInfo/irreducible_pgo.ll (original)
+++ llvm/trunk/test/Analysis/BlockFrequencyInfo/irreducible_pgo.ll Tue Nov 14 11:48:59 2017
@@ -79,28 +79,16 @@ for.end:
; Function Attrs: noinline norecurse nounwind uwtable
define i32 @_Z11irreduciblePh(i8* nocapture readonly %p) !prof !27 {
entry:
- store <2 x i8*> <i8* blockaddress(@_Z11irreduciblePh, %sw.bb), i8* blockaddress(@_Z11irreduciblePh, %TARGET_1)>, <2 x i8*>* bitcast ([256 x i8*]* @targets to <2 x i8*>*), align 16
- store i8* blockaddress(@_Z11irreduciblePh, %TARGET_2), i8** getelementptr inbounds ([256 x i8*], [256 x i8*]* @targets, i64 0, i64 2), align 16
%0 = load i32, i32* @tracing, align 4
+ %1 = trunc i32 %0 to i8
%tobool = icmp eq i32 %0, 0
br label %for.cond1
for.cond1: ; preds = %sw.default, %entry
- %p.addr.0 = phi i8* [ %p, %entry ], [ %p.addr.4, %sw.default ]
- %sum.0 = phi i32 [ 0, %entry ], [ %add25, %sw.default ]
- %incdec.ptr = getelementptr inbounds i8, i8* %p.addr.0, i64 1
- %1 = load i8, i8* %p.addr.0, align 1
- %incdec.ptr2 = getelementptr inbounds i8, i8* %p.addr.0, i64 2
- %2 = load i8, i8* %incdec.ptr, align 1
- %conv3 = zext i8 %2 to i32
br label %dispatch_op
dispatch_op: ; preds = %sw.bb6, %for.cond1
- %p.addr.1 = phi i8* [ %incdec.ptr2, %for.cond1 ], [ %p.addr.2, %sw.bb6 ]
- %op.0 = phi i8 [ %1, %for.cond1 ], [ 1, %sw.bb6 ]
- %oparg.0 = phi i32 [ %conv3, %for.cond1 ], [ %oparg.2, %sw.bb6 ]
- %sum.1 = phi i32 [ %sum.0, %for.cond1 ], [ %add7, %sw.bb6 ]
- switch i8 %op.0, label %sw.default [
+ switch i8 %1, label %sw.default [
i8 0, label %sw.bb
i8 1, label %dispatch_op.sw.bb6_crit_edge
i8 2, label %sw.bb15
@@ -110,75 +98,40 @@ dispatch_op.sw.bb6_crit_edge:
br label %sw.bb6
sw.bb: ; preds = %indirectgoto, %dispatch_op
- %oparg.1 = phi i32 [ %oparg.0, %dispatch_op ], [ 0, %indirectgoto ]
- %sum.2 = phi i32 [ %sum.1, %dispatch_op ], [ %sum.7, %indirectgoto ]
- %add.neg = sub i32 -5, %oparg.1
- %sub = add i32 %add.neg, %sum.2
br label %exit
TARGET_1: ; preds = %indirectgoto
- %incdec.ptr4 = getelementptr inbounds i8, i8* %add.ptr.pn, i64 2
- %3 = load i8, i8* %p.addr.5, align 1
- %conv5 = zext i8 %3 to i32
br label %sw.bb6
sw.bb6: ; preds = %TARGET_1, %dispatch_op.sw.bb6_crit_edge
- %p.addr.2 = phi i8* [ %incdec.ptr4, %TARGET_1 ], [ %p.addr.1, %dispatch_op.sw.bb6_crit_edge ]
- %oparg.2 = phi i32 [ %conv5, %TARGET_1 ], [ %oparg.0, %dispatch_op.sw.bb6_crit_edge ]
- %sum.3 = phi i32 [ %sum.7, %TARGET_1 ], [ %sum.1, %dispatch_op.sw.bb6_crit_edge ]
- %mul = mul nsw i32 %oparg.2, 7
- %add7 = add nsw i32 %sum.3, %mul
- %rem46 = and i32 %add7, 1
- %cmp8 = icmp eq i32 %rem46, 0
- br i1 %cmp8, label %dispatch_op, label %if.then, !prof !37, !irr_loop !38
+ br i1 %tobool, label %dispatch_op, label %if.then, !prof !37, !irr_loop !38
if.then: ; preds = %sw.bb6
- %mul9 = mul nsw i32 %add7, 9
br label %indirectgoto
TARGET_2: ; preds = %indirectgoto
- %incdec.ptr13 = getelementptr inbounds i8, i8* %add.ptr.pn, i64 2
- %4 = load i8, i8* %p.addr.5, align 1
- %conv14 = zext i8 %4 to i32
br label %sw.bb15
sw.bb15: ; preds = %TARGET_2, %dispatch_op
- %p.addr.3 = phi i8* [ %p.addr.1, %dispatch_op ], [ %incdec.ptr13, %TARGET_2 ]
- %oparg.3 = phi i32 [ %oparg.0, %dispatch_op ], [ %conv14, %TARGET_2 ]
- %sum.4 = phi i32 [ %sum.1, %dispatch_op ], [ %sum.7, %TARGET_2 ]
- %add16 = add nsw i32 %oparg.3, 3
- %add17 = add nsw i32 %add16, %sum.4
br i1 %tobool, label %if.then18, label %exit, !prof !39, !irr_loop !40
if.then18: ; preds = %sw.bb15
- %idx.ext = sext i32 %oparg.3 to i64
- %add.ptr = getelementptr inbounds i8, i8* %p.addr.3, i64 %idx.ext
- %mul19 = mul nsw i32 %add17, 17
br label %indirectgoto
unknown_op: ; preds = %indirectgoto
- %sub24 = add nsw i32 %sum.7, -4
br label %sw.default
sw.default: ; preds = %unknown_op, %dispatch_op
- %p.addr.4 = phi i8* [ %p.addr.5, %unknown_op ], [ %p.addr.1, %dispatch_op ]
- %sum.5 = phi i32 [ %sub24, %unknown_op ], [ %sum.1, %dispatch_op ]
- %add25 = add nsw i32 %sum.5, 11
br label %for.cond1
exit: ; preds = %sw.bb15, %sw.bb
- %sum.6 = phi i32 [ %sub, %sw.bb ], [ %add17, %sw.bb15 ]
- ret i32 %sum.6
+ ret i32 0
indirectgoto: ; preds = %if.then18, %if.then
- %add.ptr.pn = phi i8* [ %add.ptr, %if.then18 ], [ %p.addr.2, %if.then ]
- %sum.7 = phi i32 [ %mul19, %if.then18 ], [ %mul9, %if.then ]
- %p.addr.5 = getelementptr inbounds i8, i8* %add.ptr.pn, i64 1
- %5 = load i8, i8* %add.ptr.pn, align 1
- %idxprom21 = zext i8 %5 to i64
+ %idxprom21 = zext i32 %0 to i64
%arrayidx22 = getelementptr inbounds [256 x i8*], [256 x i8*]* @targets, i64 0, i64 %idxprom21
- %6 = load i8*, i8** %arrayidx22, align 8
- indirectbr i8* %6, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2], !prof !41, !irr_loop !42
+ %target = load i8*, i8** %arrayidx22, align 8
+ indirectbr i8* %target, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2], !prof !41, !irr_loop !42
}
!36 = !{!"branch_weights", i32 0, i32 0, i32 201, i32 1}
Modified: llvm/trunk/test/Transforms/PGOProfile/irreducible.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/PGOProfile/irreducible.ll?rev=318182&r1=318181&r2=318182&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/PGOProfile/irreducible.ll (original)
+++ llvm/trunk/test/Transforms/PGOProfile/irreducible.ll Tue Nov 14 11:48:59 2017
@@ -68,28 +68,16 @@ for.end:
; Function Attrs: noinline norecurse nounwind uwtable
define i32 @_Z11irreduciblePh(i8* nocapture readonly %p) {
entry:
- store <2 x i8*> <i8* blockaddress(@_Z11irreduciblePh, %sw.bb), i8* blockaddress(@_Z11irreduciblePh, %TARGET_1)>, <2 x i8*>* bitcast ([256 x i8*]* @targets to <2 x i8*>*), align 16
- store i8* blockaddress(@_Z11irreduciblePh, %TARGET_2), i8** getelementptr inbounds ([256 x i8*], [256 x i8*]* @targets, i64 0, i64 2), align 16
%0 = load i32, i32* @tracing, align 4
+ %1 = trunc i32 %0 to i8
%tobool = icmp eq i32 %0, 0
br label %for.cond1
for.cond1: ; preds = %sw.default, %entry
- %p.addr.0 = phi i8* [ %p, %entry ], [ %p.addr.4, %sw.default ]
- %sum.0 = phi i32 [ 0, %entry ], [ %add25, %sw.default ]
- %incdec.ptr = getelementptr inbounds i8, i8* %p.addr.0, i64 1
- %1 = load i8, i8* %p.addr.0, align 1
- %incdec.ptr2 = getelementptr inbounds i8, i8* %p.addr.0, i64 2
- %2 = load i8, i8* %incdec.ptr, align 1
- %conv3 = zext i8 %2 to i32
br label %dispatch_op
dispatch_op: ; preds = %sw.bb6, %for.cond1
- %p.addr.1 = phi i8* [ %incdec.ptr2, %for.cond1 ], [ %p.addr.2, %sw.bb6 ]
- %op.0 = phi i8 [ %1, %for.cond1 ], [ 1, %sw.bb6 ]
- %oparg.0 = phi i32 [ %conv3, %for.cond1 ], [ %oparg.2, %sw.bb6 ]
- %sum.1 = phi i32 [ %sum.0, %for.cond1 ], [ %add7, %sw.bb6 ]
- switch i8 %op.0, label %sw.default [
+ switch i8 %1, label %sw.default [
i8 0, label %sw.bb
i8 1, label %dispatch_op.sw.bb6_crit_edge
i8 2, label %sw.bb15
@@ -99,80 +87,45 @@ dispatch_op.sw.bb6_crit_edge:
br label %sw.bb6
sw.bb: ; preds = %indirectgoto, %dispatch_op
- %oparg.1 = phi i32 [ %oparg.0, %dispatch_op ], [ 0, %indirectgoto ]
- %sum.2 = phi i32 [ %sum.1, %dispatch_op ], [ %sum.7, %indirectgoto ]
- %add.neg = sub i32 -5, %oparg.1
- %sub = add i32 %add.neg, %sum.2
br label %exit
TARGET_1: ; preds = %indirectgoto
- %incdec.ptr4 = getelementptr inbounds i8, i8* %add.ptr.pn, i64 2
- %3 = load i8, i8* %p.addr.5, align 1
- %conv5 = zext i8 %3 to i32
br label %sw.bb6
-sw.bb6: ; preds = %dispatch_op.sw.bb6_crit_edge, %TARGET_1
- %p.addr.2 = phi i8* [ %incdec.ptr4, %TARGET_1 ], [ %p.addr.1, %dispatch_op.sw.bb6_crit_edge ]
- %oparg.2 = phi i32 [ %conv5, %TARGET_1 ], [ %oparg.0, %dispatch_op.sw.bb6_crit_edge ]
- %sum.3 = phi i32 [ %sum.7, %TARGET_1 ], [ %sum.1, %dispatch_op.sw.bb6_crit_edge ]
- %mul = mul nsw i32 %oparg.2, 7
- %add7 = add nsw i32 %sum.3, %mul
- %rem46 = and i32 %add7, 1
- %cmp8 = icmp eq i32 %rem46, 0
- br i1 %cmp8, label %dispatch_op, label %if.then
-; USE: br i1 %cmp8, label %dispatch_op, label %if.then, !prof !{{[0-9]+}},
+sw.bb6: ; preds = %TARGET_1, %dispatch_op.sw.bb6_crit_edge
+ br i1 %tobool, label %dispatch_op, label %if.then
+; USE: br i1 %tobool, label %dispatch_op, label %if.then, !prof !{{[0-9]+}},
; USE-SAME: !irr_loop ![[SW_BB6_IRR_LOOP:[0-9]+]]
if.then: ; preds = %sw.bb6
- %mul9 = mul nsw i32 %add7, 9
br label %indirectgoto
TARGET_2: ; preds = %indirectgoto
- %incdec.ptr13 = getelementptr inbounds i8, i8* %add.ptr.pn, i64 2
- %4 = load i8, i8* %p.addr.5, align 1
- %conv14 = zext i8 %4 to i32
br label %sw.bb15
sw.bb15: ; preds = %TARGET_2, %dispatch_op
- %p.addr.3 = phi i8* [ %p.addr.1, %dispatch_op ], [ %incdec.ptr13, %TARGET_2 ]
- %oparg.3 = phi i32 [ %oparg.0, %dispatch_op ], [ %conv14, %TARGET_2 ]
- %sum.4 = phi i32 [ %sum.1, %dispatch_op ], [ %sum.7, %TARGET_2 ]
- %add16 = add nsw i32 %oparg.3, 3
- %add17 = add nsw i32 %add16, %sum.4
br i1 %tobool, label %if.then18, label %exit
; USE: br i1 %tobool, label %if.then18, label %exit, !prof !{{[0-9]+}},
; USE-SAME: !irr_loop ![[SW_BB15_IRR_LOOP:[0-9]+]]
if.then18: ; preds = %sw.bb15
- %idx.ext = sext i32 %oparg.3 to i64
- %add.ptr = getelementptr inbounds i8, i8* %p.addr.3, i64 %idx.ext
- %mul19 = mul nsw i32 %add17, 17
br label %indirectgoto
unknown_op: ; preds = %indirectgoto
- %sub24 = add nsw i32 %sum.7, -4
br label %sw.default
sw.default: ; preds = %unknown_op, %dispatch_op
- %p.addr.4 = phi i8* [ %p.addr.5, %unknown_op ], [ %p.addr.1, %dispatch_op ]
- %sum.5 = phi i32 [ %sub24, %unknown_op ], [ %sum.1, %dispatch_op ]
- %add25 = add nsw i32 %sum.5, 11
br label %for.cond1
exit: ; preds = %sw.bb15, %sw.bb
- %sum.6 = phi i32 [ %sub, %sw.bb ], [ %add17, %sw.bb15 ]
- ret i32 %sum.6
+ ret i32 0
indirectgoto: ; preds = %if.then18, %if.then
- %add.ptr.pn = phi i8* [ %add.ptr, %if.then18 ], [ %p.addr.2, %if.then ]
- %sum.7 = phi i32 [ %mul19, %if.then18 ], [ %mul9, %if.then ]
- %p.addr.5 = getelementptr inbounds i8, i8* %add.ptr.pn, i64 1
- %5 = load i8, i8* %add.ptr.pn, align 1
- %idxprom21 = zext i8 %5 to i64
+ %idxprom21 = zext i32 %0 to i64
%arrayidx22 = getelementptr inbounds [256 x i8*], [256 x i8*]* @targets, i64 0, i64 %idxprom21
- %6 = load i8*, i8** %arrayidx22, align 8
- indirectbr i8* %6, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2]
-; USE: indirectbr i8* %6, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2], !prof !{{[0-9]+}},
+ %target = load i8*, i8** %arrayidx22, align 8
+ indirectbr i8* %target, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2]
+; USE: indirectbr i8* %target, [label %unknown_op, label %sw.bb, label %TARGET_1, label %TARGET_2], !prof !{{[0-9]+}},
; USE-SAME: !irr_loop ![[INDIRECTGOTO_IRR_LOOP:[0-9]+]]
}
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