forked from OSchip/llvm-project
177 lines
6.3 KiB
LLVM
177 lines
6.3 KiB
LLVM
; RUN: opt < %s -disable-output "-passes=print<ddg>" 2>&1 | FileCheck %s
|
|
|
|
; CHECK-LABEL: 'DDG' for loop 'test1.for.body':
|
|
|
|
; CHECK: Node Address:[[PI:0x[0-9a-f]*]]:pi-block
|
|
; CHECK-NEXT: --- start of nodes in pi-block ---
|
|
; CHECK: Node Address:[[N1:0x[0-9a-f]*]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %i.02 = phi i64 [ %inc, %test1.for.body ], [ 0, %test1.for.body.preheader ]
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N2:0x[0-9a-f]*]]
|
|
|
|
; CHECK: Node Address:[[N2]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %inc = add i64 %i.02, 1
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N1]]
|
|
; CHECK-NEXT: --- end of nodes in pi-block ---
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N3:0x[0-9a-f]*]]
|
|
; CHECK-NEXT: [def-use] to [[N4:0x[0-9a-f]*]]
|
|
; CHECK-NEXT: [def-use] to [[N5:0x[0-9a-f]*]]
|
|
|
|
; CHECK: Node Address:[[N5]]:multi-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %exitcond = icmp ne i64 %inc, %n
|
|
; CHECK-NEXT: br i1 %exitcond, label %test1.for.body, label %for.end.loopexit
|
|
; CHECK-NEXT: Edges:none!
|
|
|
|
; CHECK: Node Address:[[N4]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %arrayidx1 = getelementptr inbounds float, float* %a, i64 %i.02
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N6:0x[0-9a-f]*]]
|
|
|
|
; CHECK: Node Address:[[N3]]:multi-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %arrayidx = getelementptr inbounds float, float* %b, i64 %i.02
|
|
; CHECK-NEXT: %0 = load float, float* %arrayidx, align 4
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N7:0x[0-9a-f]*]]
|
|
|
|
; CHECK: Node Address:[[N8:0x[0-9a-f]*]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %conv = uitofp i64 %n to float
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N7]]
|
|
|
|
; CHECK: Node Address:[[N7]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %add = fadd float %0, %conv
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N6]]
|
|
|
|
; CHECK: Node Address:[[N6]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: store float %add, float* %arrayidx1, align 4
|
|
; CHECK-NEXT: Edges:none!
|
|
|
|
|
|
;; No memory dependencies.
|
|
;; void test1(unsigned long n, float * restrict a, float * restrict b) {
|
|
;; for (unsigned long i = 0; i < n; i++)
|
|
;; a[i] = b[i] + n;
|
|
;; }
|
|
|
|
define void @test1(i64 %n, float* noalias %a, float* noalias %b) {
|
|
entry:
|
|
%exitcond1 = icmp ne i64 0, %n
|
|
br i1 %exitcond1, label %test1.for.body, label %for.end
|
|
|
|
test1.for.body: ; preds = %entry, %test1.for.body
|
|
%i.02 = phi i64 [ %inc, %test1.for.body ], [ 0, %entry ]
|
|
%arrayidx = getelementptr inbounds float, float* %b, i64 %i.02
|
|
%0 = load float, float* %arrayidx, align 4
|
|
%conv = uitofp i64 %n to float
|
|
%add = fadd float %0, %conv
|
|
%arrayidx1 = getelementptr inbounds float, float* %a, i64 %i.02
|
|
store float %add, float* %arrayidx1, align 4
|
|
%inc = add i64 %i.02, 1
|
|
%exitcond = icmp ne i64 %inc, %n
|
|
br i1 %exitcond, label %test1.for.body, label %for.end
|
|
|
|
for.end: ; preds = %test1.for.body, %entry
|
|
ret void
|
|
}
|
|
|
|
|
|
; CHECK-LABEL: 'DDG' for loop 'test2.for.body':
|
|
|
|
; CHECK: Node Address:[[PI:0x[0-9a-f]*]]:pi-block
|
|
; CHECK-NEXT: --- start of nodes in pi-block ---
|
|
; CHECK: Node Address:[[N1:0x[0-9a-f]*]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %i.02 = phi i64 [ %inc, %test2.for.body ], [ 0, %test2.for.body.preheader ]
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N2:0x[0-9a-f]*]]
|
|
|
|
; CHECK: Node Address:[[N2]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %inc = add i64 %i.02, 1
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N1]]
|
|
; CHECK-NEXT: --- end of nodes in pi-block ---
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N3:0x[0-9a-f]*]]
|
|
; CHECK-NEXT: [def-use] to [[N4:0x[0-9a-f]*]]
|
|
; CHECK-NEXT: [def-use] to [[N5:0x[0-9a-f]*]]
|
|
; CHECK-NEXT: [def-use] to [[N6:0x[0-9a-f]*]]
|
|
|
|
; CHECK: Node Address:[[N6]]:multi-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %exitcond = icmp ne i64 %inc, %n
|
|
; CHECK-NEXT: br i1 %exitcond, label %test2.for.body, label %for.end.loopexit
|
|
; CHECK-NEXT: Edges:none!
|
|
|
|
; CHECK: Node Address:[[N5]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %arrayidx2 = getelementptr inbounds float, float* %a, i64 %i.02
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N7:0x[0-9a-f]*]]
|
|
|
|
; CHECK: Node Address:[[N4]]:multi-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %arrayidx1 = getelementptr inbounds float, float* %a, i64 %i.02
|
|
; CHECK-NEXT: %1 = load float, float* %arrayidx1, align 4
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N8:0x[0-9a-f]*]]
|
|
; CHECK-NEXT: [memory] to [[N7]]
|
|
|
|
; CHECK: Node Address:[[N3]]:multi-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %arrayidx = getelementptr inbounds float, float* %b, i64 %i.02
|
|
; CHECK-NEXT: %0 = load float, float* %arrayidx, align 4
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N8]]
|
|
|
|
; CHECK: Node Address:[[N8]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: %add = fadd float %0, %1
|
|
; CHECK-NEXT: Edges:
|
|
; CHECK-NEXT: [def-use] to [[N7]]
|
|
|
|
; CHECK: Node Address:[[N7]]:single-instruction
|
|
; CHECK-NEXT: Instructions:
|
|
; CHECK-NEXT: store float %add, float* %arrayidx2, align 4
|
|
; CHECK-NEXT: Edges:none!
|
|
|
|
|
|
|
|
;; Loop-independent memory dependencies.
|
|
;; void test2(unsigned long n, float * restrict a, float * restrict b) {
|
|
;; for (unsigned long i = 0; i < n; i++)
|
|
;; a[i] = b[i] + a[i];
|
|
;; }
|
|
|
|
define void @test2(i64 %n, float* noalias %a, float* noalias %b) {
|
|
entry:
|
|
%exitcond1 = icmp ne i64 0, %n
|
|
br i1 %exitcond1, label %test2.for.body, label %for.end
|
|
|
|
test2.for.body: ; preds = %entry, %test2.for.body
|
|
%i.02 = phi i64 [ %inc, %test2.for.body ], [ 0, %entry ]
|
|
%arrayidx = getelementptr inbounds float, float* %b, i64 %i.02
|
|
%0 = load float, float* %arrayidx, align 4
|
|
%arrayidx1 = getelementptr inbounds float, float* %a, i64 %i.02
|
|
%1 = load float, float* %arrayidx1, align 4
|
|
%add = fadd float %0, %1
|
|
%arrayidx2 = getelementptr inbounds float, float* %a, i64 %i.02
|
|
store float %add, float* %arrayidx2, align 4
|
|
%inc = add i64 %i.02, 1
|
|
%exitcond = icmp ne i64 %inc, %n
|
|
br i1 %exitcond, label %test2.for.body, label %for.end
|
|
|
|
for.end: ; preds = %test2.for.body, %entry
|
|
ret void
|
|
} |