R600: Add failing control flow tests.

Simple cases hit a variety of problems at -O0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202601 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 114 insertions, 0 deletions

diff --git a/test/CodeGen/R600/unhandled-loop-condition-assertion.ll b/test/CodeGen/R600/unhandled-loop-condition-assertion.ll
new file mode 100644
index 0000000000..e4129c5112
--- /dev/null
+++ b/test/CodeGen/R600/unhandled-loop-condition-assertion.ll
@@ -0,0 +1,114 @@
+; REQUIRES: asserts
+; XFAIL: *
+; RUN: llc -O0 -verify-machineinstrs -asm-verbose=0 -march=r600 -mcpu=SI < %s | FileCheck -check-prefix=SI -check-prefix=COMMON %s
+; RUN: llc -O0 -verify-machineinstrs -asm-verbose=0 -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=COMMON %s
+
+; SI hits an assertion at -O0, evergreen hits a not implemented unreachable.
+
+; COMMON-LABEL: @branch_true:
+define void @branch_true(i8 addrspace(1)* nocapture %main, i32 %main_stride) #0 {
+entry:
+  br i1 true, label %for.end, label %for.body.lr.ph
+
+for.body.lr.ph:                                   ; preds = %entry
+  %add.ptr.sum = shl i32 %main_stride, 1
+  %add.ptr1.sum = add i32 %add.ptr.sum, %main_stride
+  %add.ptr4.sum = shl i32 %main_stride, 2
+  br label %for.body
+
+for.body:                                         ; preds = %for.body, %for.body.lr.ph
+  %main.addr.011 = phi i8 addrspace(1)* [ %main, %for.body.lr.ph ], [ %add.ptr6, %for.body ]
+  %0 = bitcast i8 addrspace(1)* %main.addr.011 to i32 addrspace(1)*
+  %1 = load i32 addrspace(1)* %0, align 4
+  %add.ptr = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %main_stride
+  %2 = bitcast i8 addrspace(1)* %add.ptr to i32 addrspace(1)*
+  %3 = load i32 addrspace(1)* %2, align 4
+  %add.ptr1 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr.sum
+  %4 = bitcast i8 addrspace(1)* %add.ptr1 to i32 addrspace(1)*
+  %5 = load i32 addrspace(1)* %4, align 4
+  %add.ptr2 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr1.sum
+  %6 = bitcast i8 addrspace(1)* %add.ptr2 to i32 addrspace(1)*
+  %7 = load i32 addrspace(1)* %6, align 4
+  %add.ptr3 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr4.sum
+  %8 = bitcast i8 addrspace(1)* %add.ptr3 to i32 addrspace(1)*
+  %9 = load i32 addrspace(1)* %8, align 4
+  %add.ptr6 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 undef
+  br i1 undef, label %for.end, label %for.body
+
+for.end:                                          ; preds = %for.body, %entry
+  ret void
+}
+
+; COMMON-LABEL: @branch_false:
+; SI: .text
+; SI-NEXT: S_ENDPGM
+define void @branch_false(i8 addrspace(1)* nocapture %main, i32 %main_stride) #0 {
+entry:
+  br i1 false, label %for.end, label %for.body.lr.ph
+
+for.body.lr.ph:                                   ; preds = %entry
+  %add.ptr.sum = shl i32 %main_stride, 1
+  %add.ptr1.sum = add i32 %add.ptr.sum, %main_stride
+  %add.ptr4.sum = shl i32 %main_stride, 2
+  br label %for.body
+
+for.body:                                         ; preds = %for.body, %for.body.lr.ph
+  %main.addr.011 = phi i8 addrspace(1)* [ %main, %for.body.lr.ph ], [ %add.ptr6, %for.body ]
+  %0 = bitcast i8 addrspace(1)* %main.addr.011 to i32 addrspace(1)*
+  %1 = load i32 addrspace(1)* %0, align 4
+  %add.ptr = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %main_stride
+  %2 = bitcast i8 addrspace(1)* %add.ptr to i32 addrspace(1)*
+  %3 = load i32 addrspace(1)* %2, align 4
+  %add.ptr1 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr.sum
+  %4 = bitcast i8 addrspace(1)* %add.ptr1 to i32 addrspace(1)*
+  %5 = load i32 addrspace(1)* %4, align 4
+  %add.ptr2 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr1.sum
+  %6 = bitcast i8 addrspace(1)* %add.ptr2 to i32 addrspace(1)*
+  %7 = load i32 addrspace(1)* %6, align 4
+  %add.ptr3 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr4.sum
+  %8 = bitcast i8 addrspace(1)* %add.ptr3 to i32 addrspace(1)*
+  %9 = load i32 addrspace(1)* %8, align 4
+  %add.ptr6 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 undef
+  br i1 undef, label %for.end, label %for.body
+
+for.end:                                          ; preds = %for.body, %entry
+  ret void
+}
+
+; COMMON-LABEL: @branch_undef:
+; SI: .text
+; SI-NEXT: S_ENDPGM
+define void @branch_undef(i8 addrspace(1)* nocapture %main, i32 %main_stride) #0 {
+entry:
+  br i1 undef, label %for.end, label %for.body.lr.ph
+
+for.body.lr.ph:                                   ; preds = %entry
+  %add.ptr.sum = shl i32 %main_stride, 1
+  %add.ptr1.sum = add i32 %add.ptr.sum, %main_stride
+  %add.ptr4.sum = shl i32 %main_stride, 2
+  br label %for.body
+
+for.body:                                         ; preds = %for.body, %for.body.lr.ph
+  %main.addr.011 = phi i8 addrspace(1)* [ %main, %for.body.lr.ph ], [ %add.ptr6, %for.body ]
+  %0 = bitcast i8 addrspace(1)* %main.addr.011 to i32 addrspace(1)*
+  %1 = load i32 addrspace(1)* %0, align 4
+  %add.ptr = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %main_stride
+  %2 = bitcast i8 addrspace(1)* %add.ptr to i32 addrspace(1)*
+  %3 = load i32 addrspace(1)* %2, align 4
+  %add.ptr1 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr.sum
+  %4 = bitcast i8 addrspace(1)* %add.ptr1 to i32 addrspace(1)*
+  %5 = load i32 addrspace(1)* %4, align 4
+  %add.ptr2 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr1.sum
+  %6 = bitcast i8 addrspace(1)* %add.ptr2 to i32 addrspace(1)*
+  %7 = load i32 addrspace(1)* %6, align 4
+  %add.ptr3 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr4.sum
+  %8 = bitcast i8 addrspace(1)* %add.ptr3 to i32 addrspace(1)*
+  %9 = load i32 addrspace(1)* %8, align 4
+  %add.ptr6 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 undef
+  br i1 undef, label %for.end, label %for.body
+
+for.end:                                          ; preds = %for.body, %entry
+  ret void
+}
+
+attributes #0 = { nounwind }