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| author | Sanjoy Das <sanjoy@playingwithpointers.com> | 2016-04-05 23:18:35 +0000 |
|---|---|---|
| committer | Sanjoy Das <sanjoy@playingwithpointers.com> | 2016-04-05 23:18:35 +0000 |
| commit | 49e974b33b3107c1a35c7216f3fbbf8a27b736fe (patch) | |
| tree | 0b1f73cd0e72bd0634f623272566292defb01b12 /llvm/test/Transforms/RewriteStatepointsForGC/deopt-intrinsic.ll | |
| parent | 6ae3b78df643f18c67f4a77334a3d855a04e1f6a (diff) | |
| download | bcm5719-llvm-49e974b33b3107c1a35c7216f3fbbf8a27b736fe.tar.gz bcm5719-llvm-49e974b33b3107c1a35c7216f3fbbf8a27b736fe.zip | |
[RS4GC] Better codegen for deoptimize calls
Don't emit a gc.result for a statepoint lowered from
@llvm.experimental.deoptimize since the call into __llvm_deoptimize is
effectively noreturn. Instead follow the corresponding gc.statepoint
with an "unreachable".
llvm-svn: 265485
Diffstat (limited to 'llvm/test/Transforms/RewriteStatepointsForGC/deopt-intrinsic.ll')
| -rw-r--r-- | llvm/test/Transforms/RewriteStatepointsForGC/deopt-intrinsic.ll | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/llvm/test/Transforms/RewriteStatepointsForGC/deopt-intrinsic.ll b/llvm/test/Transforms/RewriteStatepointsForGC/deopt-intrinsic.ll index 9a8f58c6ecb..ef0e2bd61af 100644 --- a/llvm/test/Transforms/RewriteStatepointsForGC/deopt-intrinsic.ll +++ b/llvm/test/Transforms/RewriteStatepointsForGC/deopt-intrinsic.ll @@ -4,10 +4,12 @@ target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-apple-macosx10.11.0" declare i32 @llvm.experimental.deoptimize.i32(...) +declare void @llvm.experimental.deoptimize.isVoid(...) define i32 @caller_0(i32 addrspace(1)* %ptr) gc "statepoint-example" { ; CHECK-LABEL: @caller_0( -; CHECK: @llvm.experimental.gc.statepoint.p0f_i32f(i64 2882400000, i32 0, i32 ()* @__llvm_deoptimize, i32 0 +; CHECK: @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @__llvm_deoptimize, i32 0 +; CHECK: unreachable entry: %v = call i32(...) @llvm.experimental.deoptimize.i32() [ "deopt"(i32 0, i32 addrspace(1)* %ptr) ] ret i32 %v @@ -16,8 +18,18 @@ entry: define i32 @caller_1(i32 addrspace(1)* %ptr) gc "statepoint-example" { ; CHECK-LABEL: @caller_1 -; CHECK: @llvm.experimental.gc.statepoint.p0f_i32i32p1i32f(i64 2882400000, i32 0, i32 (i32, i32 addrspace(1)*)* bitcast (i32 ()* @__llvm_deoptimize to i32 (i32, i32 addrspace(1)*)*), i32 2, i32 0, i32 50, i32 addrspace(1)* %ptr +; CHECK: @llvm.experimental.gc.statepoint.p0f_isVoidi32p1i32f(i64 2882400000, i32 0, void (i32, i32 addrspace(1)*)* bitcast (void ()* @__llvm_deoptimize to void (i32, i32 addrspace(1)*)*), i32 2, i32 0, i32 50, i32 addrspace(1)* %ptr +; CHECK: unreachable entry: %v = call i32(...) @llvm.experimental.deoptimize.i32(i32 50, i32 addrspace(1)* %ptr) [ "deopt"(i32 0) ] ret i32 %v } + +define void @caller_2(i32 addrspace(1)* %ptr) gc "statepoint-example" { +; CHECK-LABEL: @caller_2( +; CHECK: @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @__llvm_deoptimize, i32 0 +; CHECK: unreachable +entry: + call void(...) @llvm.experimental.deoptimize.isVoid() [ "deopt"(i32 0, i32 addrspace(1)* %ptr) ] + ret void +} |
