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[tests] Expand coverage of gc.relocate CSE in early-cse

This commit is contained in:
Philip Reames 2021-03-04 12:12:45 -08:00
parent bff7faea20
commit 8998b811c9
1 changed files with 48 additions and 0 deletions
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48
llvm/test/Transforms/EarlyCSE/gc_relocate.ll
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@ -4,6 +4,25 @@
declare void @func()
declare i32 @"personality_function"()
define i1 @test_trivial(i32 addrspace(1)* %in) gc "statepoint-example" {
; CHECK-LABEL: @test_trivial(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[SAFEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @func, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i32 addrspace(1)* [[IN:%.*]]) ]
; CHECK-NEXT: [[A:%.*]] = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token [[SAFEPOINT_TOKEN]], i32 0, i32 0)
; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 addrspace(1)* [[A]], null
; CHECK-NEXT: ret i1 [[CMP1]]
;
entry:
%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @func, i32 0, i32 0, i32 0, i32 0) ["gc-live"(i32 addrspace(1)* %in)]
%a = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 0)
%b = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 0)
%cmp1 = icmp eq i32 addrspace(1)* %a, null
%cmp2 = icmp eq i32 addrspace(1)* %b, null
%cmp = and i1 %cmp1, %cmp2
ret i1 %cmp
}
define i1 @test_call(i32 addrspace(1)* %in) gc "statepoint-example" {
; CHECK-LABEL: @test_call(
; CHECK-NEXT: entry:
@ -85,5 +104,34 @@ exceptional_return:
ret i32 addrspace(1)* %out1
}
; negative test - neither dominates the other
define i1 @test_non_dominating(i1 %c, i32 addrspace(1)* %in) gc "statepoint-example" {
;
; CHECK-LABEL: @test_non_dominating(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[SAFEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @func, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i32 addrspace(1)* [[IN:%.*]]) ]
; CHECK-NEXT: br i1 [[C:%.*]], label [[TAKEN:%.*]], label [[UNTAKEN:%.*]]
; CHECK: taken:
; CHECK-NEXT: [[A:%.*]] = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token [[SAFEPOINT_TOKEN]], i32 0, i32 0)
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 addrspace(1)* [[A]], null
; CHECK-NEXT: ret i1 [[CMP]]
; CHECK: untaken:
; CHECK-NEXT: [[B:%.*]] = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token [[SAFEPOINT_TOKEN]], i32 0, i32 0)
; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i32 addrspace(1)* [[B]], null
; CHECK-NEXT: ret i1 [[CMP2]]
;
entry:
%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @func, i32 0, i32 0, i32 0, i32 0) ["gc-live"(i32 addrspace(1)* %in)]
br i1 %c, label %taken, label %untaken
taken:
%a = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 0)
%cmp = icmp eq i32 addrspace(1)* %a, null
ret i1 %cmp
untaken:
%b = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token %safepoint_token, i32 0, i32 0)
%cmp2 = icmp eq i32 addrspace(1)* %b, null
ret i1 %cmp2
}
declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(token, i32, i32)