Fix #11437 FP knownConditionTrueFalse when comparing clamped value #20465

Job	Run time
build_make (ubuntu:25.10)	5m 26s
build_make (ubuntu:24.04)	4m 39s
build_cmake (ubuntu:25.10, true, true)	3m 12s
build_cmake (ubuntu:24.04, true, true)	2m 58s
build_cmake (alpine:3.23, false, false)	4m 34s
build_make (alpine:3.23)	4m 26s
	25m 15s

Provide feedback