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1; RUN: llc -stop-after=amdgpu-isel -mtriple=amdgcn-- -mcpu=gfx1100 -verify-machineinstrs -o - %s | FileCheck --check-prefixes=CHECK,ISEL %s2; RUN: not --crash llc -mtriple=amdgcn--amdhsa -mcpu=gfx1100 -verify-machineinstrs < %s 2>&1 | FileCheck --check-prefix=CHECK-ERROR %s3 4; FIXME: Merge these tests with existing lane op tests (llvm.amdgcn.readlane.ll, llvm.amdgcn.writelane.ll ...) once the crash is fixed.5 6; CHECK-LABEL: name: basic_readfirstlane_i647; CHECK: [[TOKEN:%[0-9]+]]{{[^ ]*}} = CONVERGENCECTRL_ANCHOR8; ISEL: CONVERGENCECTRL_GLUE [[TOKEN]]9; ISEL: {{.*}} = V_READFIRSTLANE_B32 {{.*}}, implicit [[TOKEN]]10; ISEL: CONVERGENCECTRL_GLUE [[TOKEN]]11; ISEL: {{.*}} = V_READFIRSTLANE_B32 {{.*}}, implicit [[TOKEN]]12define i64 @basic_readfirstlane_i64(i64 %src, i1 %cond) #0 {13entry:14 %t = call token @llvm.experimental.convergence.anchor()15 %x = add i64 %src, 116 br i1 %cond, label %then, label %else17 18then:19; CHECK-ERROR: Cannot mix controlled and uncontrolled convergence in the same function.20; CHECK-ERROR: V_READFIRSTLANE_B3221 %r = call i64 @llvm.amdgcn.readfirstlane.i64(i64 %x) [ "convergencectrl"(token %t) ]22 br label %else23 24else:25 %p = phi i64 [%r, %then], [%x, %entry]26 ret i64 %p27}28 29; CHECK-LABEL: name: basic_readlane_i6430; CHECK: [[TOKEN:%[0-9]+]]{{[^ ]*}} = CONVERGENCECTRL_ANCHOR31; ISEL: CONVERGENCECTRL_GLUE [[TOKEN]]32; ISEL: {{.*}} = V_READLANE_B32 {{.*}}, implicit [[TOKEN]]33; ISEL: CONVERGENCECTRL_GLUE [[TOKEN]]34; ISEL: {{.*}} = V_READLANE_B32 {{.*}}, implicit [[TOKEN]]35define i64 @basic_readlane_i64(i64 %src, i32 %lane, i1 %cond) #0 {36entry:37 %t = call token @llvm.experimental.convergence.anchor()38 %x = add i64 %src, 139 br i1 %cond, label %then, label %else40 41then:42 %r = call i64 @llvm.amdgcn.readlane.i64(i64 %x, i32 %lane) [ "convergencectrl"(token %t) ]43 br label %else44 45else:46 %p = phi i64 [%r, %then], [%x, %entry]47 ret i64 %p48}49 50; CHECK-LABEL: name: basic_writelane_i6451; CHECK: [[TOKEN:%[0-9]+]]{{[^ ]*}} = CONVERGENCECTRL_ANCHOR52; ISEL: CONVERGENCECTRL_GLUE [[TOKEN]]53; ISEL: {{.*}} = V_WRITELANE_B32 {{.*}}, implicit [[TOKEN]]54; ISEL: CONVERGENCECTRL_GLUE [[TOKEN]]55; ISEL: {{.*}} = V_WRITELANE_B32 {{.*}}, implicit [[TOKEN]]56define i64 @basic_writelane_i64(i64 %src, i1 %cond, i32 %lane, ptr addrspace(1) %out) #0 {57entry:58 %old = load i64, ptr addrspace(1) %out59 %t = call token @llvm.experimental.convergence.anchor()60 %x = add i64 %src, 161 br i1 %cond, label %then, label %else62 63then:64 %r = call i64 @llvm.amdgcn.writelane.i64(i64 %x, i32 %lane, i64 %old) [ "convergencectrl"(token %t) ]65 br label %else66 67else:68 %p = phi i64 [%r, %then], [%x, %entry]69 ret i64 %p70}71