-; RUN: llc < %s -asm-verbose=false | FileCheck %s
+; RUN: llc < %s -asm-verbose=false -disable-block-placement | FileCheck %s
+; RUN: llc < %s -asm-verbose=false | FileCheck -check-prefix=OPT %s
; Test the CFG stackifier pass.
; Test that loops are made contiguous, even in the presence of split backedges.
-; CHECK-LABEL: test0
-; CHECK: (loop
-; CHECK: (add
-; CHECK: (brif
-; CHECK: (call
-; CHECK: (br $BB0_1)
-; CHECK: (return)
+; CHECK-LABEL: test0:
+; CHECK: loop
+; CHECK: i32.add
+; CHECK-NOT: br
+; CHECK: br_if
+; CHECK-NOT: br
+; CHECK: call
+; CHECK: br BB0_1{{$}}
+; CHECK: return{{$}}
+; OPT-LABEL: test0:
+; OPT: loop
+; OPT: i32.add
+; OPT-NOT: br
+; OPT: br_if
+; OPT-NOT: br
+; OPT: call
+; OPT: br BB0_1{{$}}
+; OPT: return{{$}}
define void @test0(i32 %n) {
entry:
br label %header
; Same as test0, but the branch condition is reversed.
-; CHECK-LABEL: test1
-; CHECK: (loop
-; CHECK: (add
-; CHECK: (brif
-; CHECK: (call
-; CHECK: (br $BB1_1)
-; CHECK: (return)
+; CHECK-LABEL: test1:
+; CHECK: loop
+; CHECK: i32.add
+; CHECK-NOT: br
+; CHECK: br_if
+; CHECK-NOT: br
+; CHECK: call
+; CHECK: br BB1_1{{$}}
+; CHECK: return{{$}}
+; OPT-LABEL: test1:
+; OPT: loop
+; OPT: i32.add
+; OPT-NOT: br
+; OPT: br_if
+; OPT-NOT: br
+; OPT: call
+; OPT: br BB1_1{{$}}
+; OPT: return{{$}}
define void @test1(i32 %n) {
entry:
br label %header
; Test that a simple loop is handled as expected.
-; CHECK-LABEL: test2
-; CHECK: (block $BB2_2)
-; CHECK: (brif $BB2_2 {{.*}})
+; CHECK-LABEL: test2:
+; CHECK: block BB2_2{{$}}
+; CHECK: br_if {{.*}}, BB2_2{{$}}
; CHECK: BB2_1:
-; CHECK: (brif $BB2_1 @14)
+; CHECK: br_if ${{[0-9]+}}, BB2_1{{$}}
; CHECK: BB2_2:
-; CHECK: (return)
+; CHECK: return{{$}}
+; OPT-LABEL: test2:
+; OPT: block BB2_2{{$}}
+; OPT: br_if {{.*}}, BB2_2{{$}}
+; OPT: BB2_1:
+; OPT: br_if ${{[0-9]+}}, BB2_1{{$}}
+; OPT: BB2_2:
+; OPT: return{{$}}
define void @test2(double* nocapture %p, i32 %n) {
entry:
%cmp.4 = icmp sgt i32 %n, 0
ret void
}
-; CHECK-LABEL: doublediamond
-; CHECK: (block $BB3_5)
-; CHECK: (block $BB3_4)
-; CHECK: (block $BB3_2)
-; CHECK: (brif $BB3_2 @4)
-; CHECK: (br $BB3_5)
-; CHECK: BB3_2:
-; CHECK: (brif $BB3_4 @7)
-; CHECK: (br $BB3_5)
+; CHECK-LABEL: doublediamond:
+; CHECK: block BB3_5{{$}}
+; CHECK: block BB3_2{{$}}
+; CHECK: br_if $0, BB3_2{{$}}
+; CHECK: block BB3_4{{$}}
+; CHECK: br_if $1, BB3_4{{$}}
+; CHECK: br BB3_5{{$}}
; CHECK: BB3_4:
; CHECK: BB3_5:
-; CHECK: (return @3)
+; CHECK: return ${{[0-9]+}}{{$}}
+; OPT-LABEL: doublediamond:
+; OPT: block BB3_5{{$}}
+; OPT: block BB3_4{{$}}
+; OPT: br_if {{.*}}, BB3_4{{$}}
+; OPT: block BB3_3{{$}}
+; OPT: br_if {{.*}}, BB3_3{{$}}
+; OPT: br BB3_5{{$}}
+; OPT: BB3_4:
+; OPT: BB3_5:
+; OPT: return ${{[0-9]+}}{{$}}
define i32 @doublediamond(i32 %a, i32 %b, i32* %p) {
entry:
%c = icmp eq i32 %a, 0
ret i32 0
}
-; CHECK-LABEL: triangle
-; CHECK: (block $BB4_2)
-; CHECK: (brif $BB4_2 @3)
+; CHECK-LABEL: triangle:
+; CHECK: block BB4_2{{$}}
+; CHECK: br_if $1, BB4_2{{$}}
; CHECK: BB4_2:
-; CHECK: (return @2)
+; CHECK: return ${{[0-9]+}}{{$}}
+; OPT-LABEL: triangle:
+; OPT: block BB4_2{{$}}
+; OPT: br_if $1, BB4_2{{$}}
+; OPT: BB4_2:
+; OPT: return ${{[0-9]+}}{{$}}
define i32 @triangle(i32* %p, i32 %a) {
entry:
%c = icmp eq i32 %a, 0
ret i32 0
}
-; CHECK-LABEL: diamond
-; CHECK: (block $BB5_3)
-; CHECK: (block $BB5_2)
-; CHECK: (brif $BB5_2 @3)
-; CHECK: (br $BB5_3)
+; CHECK-LABEL: diamond:
+; CHECK: block BB5_3{{$}}
+; CHECK: block BB5_2{{$}}
+; CHECK: br_if $1, BB5_2{{$}}
+; CHECK: br BB5_3{{$}}
; CHECK: BB5_2:
; CHECK: BB5_3:
-; CHECK: (return @2)
+; CHECK: return ${{[0-9]+}}{{$}}
+; OPT-LABEL: diamond:
+; OPT: block BB5_3{{$}}
+; OPT: block BB5_2{{$}}
+; OPT: br_if {{.*}}, BB5_2{{$}}
+; OPT: br BB5_3{{$}}
+; OPT: BB5_2:
+; OPT: BB5_3:
+; OPT: return ${{[0-9]+}}{{$}}
define i32 @diamond(i32* %p, i32 %a) {
entry:
%c = icmp eq i32 %a, 0
ret i32 0
}
-; CHECK-LABEL: single_block
+; CHECK-LABEL: single_block:
; CHECK-NOT: br
-; CHECK: (return @1)
+; CHECK: return $pop{{[0-9]+}}{{$}}
+; OPT-LABEL: single_block:
+; OPT-NOT: br
+; OPT: return $pop{{[0-9]+}}{{$}}
define i32 @single_block(i32* %p) {
entry:
store volatile i32 0, i32* %p
ret i32 0
}
-; CHECK-LABEL: minimal_loop
+; CHECK-LABEL: minimal_loop:
; CHECK-NOT: br
; CHECK: BB7_1:
-; CHECK: (store_i32 @0 @2)
-; CHECK: (br $BB7_1)
+; CHECK: i32.store $discard=, 0($0), $pop{{[0-9]+}}{{$}}
+; CHECK: br BB7_1{{$}}
+; CHECK: BB7_2:
+; OPT-LABEL: minimal_loop:
+; OPT-NOT: br
+; OPT: BB7_1:
+; OPT: i32.store $discard=, 0($0), $pop{{[0-9]+}}{{$}}
+; OPT: br BB7_1{{$}}
+; OPT: BB7_2:
define i32 @minimal_loop(i32* %p) {
entry:
store volatile i32 0, i32* %p
br label %loop
}
-; CHECK-LABEL: simple_loop
+; CHECK-LABEL: simple_loop:
; CHECK-NOT: br
; CHECK: BB8_1:
-; CHECK: (loop $BB8_2)
-; CHECK: (brif $BB8_1 @4)
-; CHECK: (return @2)
+; CHECK: loop BB8_2{{$}}
+; CHECK: br_if $pop{{[0-9]+}}, BB8_1{{$}}
+; CHECK: BB8_2:
+; CHECK: return ${{[0-9]+}}{{$}}
+; OPT-LABEL: simple_loop:
+; OPT-NOT: br
+; OPT: BB8_1:
+; OPT: loop BB8_2{{$}}
+; OPT: br_if {{.*}}, BB8_1{{$}}
+; OPT: BB8_2:
+; OPT: return ${{[0-9]+}}{{$}}
define i32 @simple_loop(i32* %p, i32 %a) {
entry:
%c = icmp eq i32 %a, 0
ret i32 0
}
-; CHECK-LABEL: doubletriangle
-; CHECK: (block $BB9_4)
-; CHECK: (block $BB9_3)
-; CHECK: (brif $BB9_4 @4)
-; CHECK: (brif $BB9_3 @7)
+; CHECK-LABEL: doubletriangle:
+; CHECK: block BB9_4{{$}}
+; CHECK: br_if $0, BB9_4{{$}}
+; CHECK: block BB9_3{{$}}
+; CHECK: br_if $1, BB9_3{{$}}
; CHECK: BB9_3:
; CHECK: BB9_4:
-; CHECK: (return @3)
+; CHECK: return ${{[0-9]+}}{{$}}
+; OPT-LABEL: doubletriangle:
+; OPT: block BB9_4{{$}}
+; OPT: br_if $0, BB9_4{{$}}
+; OPT: block BB9_3{{$}}
+; OPT: br_if $1, BB9_3{{$}}
+; OPT: BB9_3:
+; OPT: BB9_4:
+; OPT: return ${{[0-9]+}}{{$}}
define i32 @doubletriangle(i32 %a, i32 %b, i32* %p) {
entry:
%c = icmp eq i32 %a, 0
ret i32 0
}
-; CHECK-LABEL: ifelse_earlyexits
-; CHECK: (block $BB10_4)
-; CHECK: (block $BB10_2)
-; CHECK: (brif $BB10_2 @4)
-; CHECK: (br $BB10_4)
+; CHECK-LABEL: ifelse_earlyexits:
+; CHECK: block BB10_4{{$}}
+; CHECK: block BB10_2{{$}}
+; CHECK: br_if $0, BB10_2{{$}}
+; CHECK: br BB10_4{{$}}
; CHECK: BB10_2:
-; CHECK: (brif $BB10_4 @7)
+; CHECK: br_if $1, BB10_4{{$}}
; CHECK: BB10_4:
-; CHECK: (return @3)
+; CHECK: return ${{[0-9]+}}{{$}}
+; OPT-LABEL: ifelse_earlyexits:
+; OPT: block BB10_4{{$}}
+; OPT: block BB10_3{{$}}
+; OPT: br_if {{.*}}, BB10_3{{$}}
+; OPT: br_if $1, BB10_4{{$}}
+; OPT: br BB10_4{{$}}
+; OPT: BB10_3:
+; OPT: BB10_4:
+; OPT: return ${{[0-9]+}}{{$}}
define i32 @ifelse_earlyexits(i32 %a, i32 %b, i32* %p) {
entry:
%c = icmp eq i32 %a, 0
ret i32 0
}
+; CHECK-LABEL: doublediamond_in_a_loop:
+; CHECK: BB11_1:
+; CHECK: loop BB11_7{{$}}
+; CHECK: block BB11_6{{$}}
+; CHECK: block BB11_3{{$}}
+; CHECK: br_if $0, BB11_3{{$}}
+; CHECK: br BB11_6{{$}}
+; CHECK: BB11_3:
+; CHECK: block BB11_5{{$}}
+; CHECK: br_if $1, BB11_5{{$}}
+; CHECK: br BB11_6{{$}}
+; CHECK: BB11_5:
+; CHECK: BB11_6:
+; CHECK: br BB11_1{{$}}
+; CHECK: BB11_7:
+; OPT-LABEL: doublediamond_in_a_loop:
+; OPT: BB11_1:
+; OPT: loop BB11_7{{$}}
+; OPT: block BB11_6{{$}}
+; OPT: block BB11_5{{$}}
+; OPT: br_if {{.*}}, BB11_5{{$}}
+; OPT: block BB11_4{{$}}
+; OPT: br_if {{.*}}, BB11_4{{$}}
+; OPT: br BB11_6{{$}}
+; OPT: BB11_4:
+; OPT: br BB11_6{{$}}
+; OPT: BB11_5:
+; OPT: BB11_6:
+; OPT: br BB11_1{{$}}
+; OPT: BB11_7:
+define i32 @doublediamond_in_a_loop(i32 %a, i32 %b, i32* %p) {
+entry:
+ br label %header
+header:
+ %c = icmp eq i32 %a, 0
+ %d = icmp eq i32 %b, 0
+ store volatile i32 0, i32* %p
+ br i1 %c, label %true, label %false
+true:
+ store volatile i32 1, i32* %p
+ br label %exit
+false:
+ store volatile i32 2, i32* %p
+ br i1 %d, label %ft, label %ff
+ft:
+ store volatile i32 3, i32* %p
+ br label %exit
+ff:
+ store volatile i32 4, i32* %p
+ br label %exit
+exit:
+ store volatile i32 5, i32* %p
+ br label %header
+}
+
; Test that nested loops are handled.
declare void @bar()
projects / oota-llvm.git / blobdiff